Sources:
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https://www.pinterest.ph/pin/297378381627745979/
https://www.cpaphils.org/cordillera.htm
https://nomadictribe.com/tribes/the-igorot
https://kahimyang.com/kauswagan/articles/1239/the-igorot-struggle-for-independence
https://www.esquiremag.ph/long-reads/features/the-untold-story-of-the-igorots-revolt-a00293-20201023-lfrm
https://commons.wikimedia.org/wiki/File:Igorot_village,_early_1800s.jpg
https://www.masterstudies.com/article/what-is-indigenous-studies-and-why-study-it/
https://www.jstor.org/stable/42719782#:~:text=for%20colonialism.%20.%20.-,The,Negrito%20stock%20since%20they%20share
https://www.britannica.com/topic/Igorot
https://arxiv.org/ftp/arxiv/papers/1802/1802.09685.pdf