Jejueo has been studied quite extensively over the last several decades, often in its guise as a ‘dialect’ of Korean. Here is a growing list of work on the language. We welcome additions.
The first book-length treatment of Jejueo in English:
Jejueo: The Language of Korea's Jeju Island, by Changyong Yang, Sejung Yang, and William O'Grady, published by the University of Hawaii Press in 2019.
PREVIOUS WORK BY OTHER SCHOLARS
Phonetics/Phonology
Bae, Yeong Whan. 2015. Jaeumgun Dansunwha. [Consonant cluster simplification]. Encyclopedia of Korean Culture. Retrieved from http://encykorea.aks.ac.kr/Contents/Index
Cho, Taehong, Sun-Ah Jun, & Peter Ladefoged. 2000. An acoustic and aerodynamic study of consonants in Cheju. Speech Sciences 7, 109-41.
Cho, Taehong, Sun-Ah Jun, Seung-Cheol Jung, & Peter Ladefoged. 2001. The vowels of Cheju. Korean Journal of Linguistics 26, 801-819.
Cho, Taehong, Sun-Ah Jun, & Peter Ladefoged. 2002. Acoustic and aerodynamic correlates of Korean stops and fricatives. Journal of Phonetics 30, 193-228.
Hyeon, Woo Jong. 1986. A phonetic study of arae-a sound in the dialect of Jeju Island. Tamna Munwha 7. 25-58.
Jung, Seung Cheol. 1995. A Diachronic Approach to the Phonological Processes of Jeju Dialect, Korean Language Society.
Jung, Seung Cheol. 1995. Jeju Bangeonui Eumunron [Phonology of Jeju Dialect], Tamna Munwha 21. 179-189.
Jung, Seung Cheol. 1999. Jeju Bangeonui Eumjowa Eumjogun [Jejueo prosody and prosodic phrase]. Jindanhagbo 88: 543-554.
Kang, Young Bong. 1983. Jejueo Bangeonui Hueum [Glottal Sounds in Jeju Dialect]. Tamna Munwha. 2. 29-43.
Kim, Kwang Woong 2001. Jeju Jiyeokeoui Eumunron [Phonology of Jeju Regional Language], Jejushi: Jeju National University Press.
Kim, Won Bo. 2005. The acoustic analysis of the diphthongs in Jeju dialect. Journal of Linguistic Studies 10(2). 161-174.
Kim, Won Bo. 2006. The acoustic analysis of monophthongs of Jeju dialect speakers in their 20s, 50s and 70s and their vowel inventories. The Journal of Linguistic Science 39, 125- 136.
Ko, Dong Ho. 2005. Generational differences in the use of /ɔ/ in the Jeju dialect. Hangukeoneomunhak 65, 55-73.
Ko, Dongho. 2008. Jeju Bangeon ui Sedaebyeol Byeonwha Yangsang [The study of alae-a in Jejueo in different generations]. Hangugeoneomunhag 65: 55-74.
Moon, Soon Deok, Chang Myeong Oh, Won Bo Kim, Woo Bong Shin. 2015.The Actual Pronunciations of Vowels and Consonants Acknowledged in the Transcription Regulation for the Jeju Language and their Phonetic Analysis Study. Center for Jeju Studies, Jeju Development Institute, Jeju Special Self-Governing Province.
Grammar (Morphology and Syntax)
Choi, Hak Kyoo. 1989. Jejubangeonui Seobeopchekye Yeongu [A Study of the mood patterns in Cheju dialect], Jeju National University of Education MA thesis.
Hyun, Pyeong Hyo. 1962. Jeju Bangeon Yeongu [A study of Jeju dialect]. Jeongyeonsa.
Hyun, Pyeong Hyo. 1977. Jejudo Baneonui Jeo, Ju Eomie Daehayeo [A study on Jejueo sentence enders, Jeo and Ju], Eeomunnonjib, 20. 239-250.
Hyun, Pyeong Hyo. 1977. Jejudo Baneonui Jondaebeop [honorifics in Jeju dialect], Gukeogungmunhak, 74:1-36.
Hyun, Pyeong Hyo. 1979. Jejudo Bangeonedaehan Geomto [Evaluation of the Studiesof Jeju Dialect]. Dialects 2, 35-55.
Hyun, Pyeong Hyo 1985. Jejudo Bangeon Yeongu [A study of Jeju dialect: Discussion], Iuchulpansa.
Hyun, Pyeong Hyo & Kang, Young Bong. 2011. Jejueo Josa Eomi Sajeon. Jeju National University
Jung, Yeong Jin 1983. Jejudo Bangeonui Jonggyeoleomi Yeongu [A study on Final Endings in Jeju Dialect]. The Society of Korean Literature Studies. 18. 307-342.
Jung, Seung Cheol. 1995. Jejeudo Bangeonui Uimunbeob Eomie Daehan Ilgochal [A Study on Final Endings in Jejueo Interrogatives]. Gwanageomunyeongu. 10.415-427.
Kang, Jeong Hee 1988. Jeju Bangeon Yeongu [A study of Jeju dialect], Daejeon: Hanman University Press.
Kang, Nam Gook. 2000. A Study on Imperative Speech Acts in Jeju Dialect. Jeju National Univeristy of Education MA thesis.
Kang, Young Bong. 2007. Jejueo. Seoul: (Ju) Sinkwang Ssiring.
Kang, Young Bong. 2013. Jeju Jiyeogeo Jeonsa Bogoseo [A Report on the Jeju Local Language Transcription]. Seoul: the National Institute of the Korean Language.
Kim, Jee Hong 2014. Jeju Bangeonui Tongsa Gisulgwa Seolmyeong [Description and explanation of syntax in Jeju dialect], Seoul: Gyeongjin.
Kim, Sung Ryong. Jejubangeonui Suryangmyeongsawa Sudanwi Uijonmyeongsa Eohui Yeongu [A Study of numeral quantitative nouns and numeral unit dependent lexicon of Jeju dialect], Yeongjueomunhakhoiji 16, 5- 42.
Ko, Jae Whan. 2011. Jejueogaeron [Introduction to Jejueo]. Seoul: Bogosa.
Ko, Dong Ho, Song, Sang Jo., Oh, Chang Myeong., Moon, Soon. Deok, and Oh, Seung Hoon. 2015. Jujutmalui ihae [Understanding Jeju speech], Center for Jeju Studies, Jeju Development Institute, Jeju Special Self-Governing Province.
Lee, Sung Nyeong. 1957. Jejubangeonui Hyeongtaeronjeok Yeongu [A syntactic study of Jeju dialect], Seoul: Tap Chulpansa.
Lee, Sung Nyeong. 1978. Jejubangeonui Hyeongtaeronjeok Yeongu [A syntactic study of Jeju dialect], Seoul: Tap Chulpansa.
Moon, Gap Soon. 2006. Jeju Bangeon Busa Yeongu [A study of adverbs in Jeju dialect], Jeju National University of Education MA thesis.
Moon, Soon-Deok. 1987. Jejudobangeonui Hyeongtaeso '-seo-e Gawanhan Yeongu [A study on the morpheme -seo in the dialect of Cheju-Island]. MA thesis. Cheju National Univerisity.
Moon, Soon Deok. 2000. A Study of Negative Expressions in Jeju Dialect (Doctoral Dissertation) Jeju: Jeju National University.
Moon, Soon Deok. 2005. The Discourse Function of Honorific Particles in Jeju Dialect-with special reference to masseum, yang,and ye, Eoneo yeongu 20 (3): 1-17.
Moon, Soon Deok, Seung Hoon Oh, Chang Myeong Oh, Ji Hong Kim, Sang Jo Song and Jae Whan Ko. 2014. Jejueo Pyogibeob Haeseol [A Manual for Jejueo orthography], Center for Jeju Studies, Jeju Development Institute, Jeju Special Self-Governing Province.
Moon, Suk-Young 1998. Jejueo Baneonui Sisang Hyeongtaee Daehan Yeongu [A study on the Tense-Aspect Morphemes in Cheju Dialect]. MA thesis. Seoul: Seoul National University.
Park, Yong Hu. 1988. Jeju Bangeon Yeongu: Jaryopyeon [A study of Jeju dialect: a collection of data], Godaeminjokmunwhayeonguso chulpansa.
Sung, Nak Soo. 1975. Jejueo Bangeonui Tongsalongjeok Yeongu [A study of Jejueo syntax], The Korean Language and Literature 68-69, 53-96.
Woo, Chang Hyun. 2011. Bangeon Hankukeo Kyoyukeul Wihan Jondaebeop Bikyo [A comparison study of the honorific system of a dialect and standard language for the pedagogical purpose: in the case of Jeju dialect and standard Korean], Eoneowa Munwha 8(1), 99-121.
Dictionaries and Lexicons
Hyeon, Pyeong Hyo et al. 2009. Jejueo Sajeon [Jejueo Dictionary]. Jeju Self-Governing Province.
Oh, Seunghun, Soon Deok Moon. 2013. Selection of basic vocabularies of the Jeju Dialect and Plans for Practical Use. Center for Jeju Studies, Jeju Development Institute, Jeju Special Self-Governing Province.
Park, Yong Hu. 1960. Jeju Bangeon Yeongu [A Study of Jeju dialect], Dongweonsa.
Park, Yong Hu. 1988. Jeju Bangeon Yeongu: Jaryopyeon [A study of Jeju dialect: a collection of data], Godaeminjokmunwhayeonguso Chulpansa.
Seok, Ju Myeong. 1947. Jejudo Bangeonjip [A collection of Jejudo dialect]. Seoulsinmunsachulpanbu.
Song, Sang Jo. 2007. Jejumal Keunsajeon. [Jeju speech dictionary], Seoul: Hangukmunwhasa.
Orthography
Kang, Young Bong. 2013. A Report on the Jeju Local Language Transcription. Seoul: the National Institute of the Korean Language.
Moon, Soon Deok, Oh, Seung Hoon, Oh, Chang Myeong, Kim, Ji Hong, Song, Sang Jo, and Ko, Jae Whan. 2014. Jejueo Pyogibeop Haeseol [A Manual for Jejueo orthography], Jeju Development Institute.
Jejueo and Middle Korean
Lee, Gi Moon. 1993. Jeju Bangeongwa Gookeosa Yeongu [A study on the Cheju Dialect and Korean Language History], Tamramuhwah 13, 145-154.
Lee, Iksop and S. Robert Ramsey. 2000. The Korean Language. Albany, NY: State University of New York.
Lee, Ki-Mun. 1993 A study on the Cheju Dialect and Korean Language History. Tamramunwha 13. 145-154.
Lee, Ki-Mun 1985. About Nogdae and Gadal. Journal of Korea Linguistics 14, 9-18
Lee, Ki-Mun 1993. Jejubangeongwa Gugeosa Yeongu [A study on the Cheju Dialect and Korean Language History]. Tamramunwha 13. 145-154.