Rujukan pertama
https://anyflip.com/qvlxk/fuov/basic
Rujukan kedua
https://www.pmo.gov.my/wp-content/uploads/2019/07/Bahasa_Melayu-
Rujukan ketiga
https://www.malaysia.gov.my/portal/content/30905?language=my
Rujukan keempat
https://www.slideshare.net/ChinWei1/dasar-negara
