saputra, Reza, Nurlita Julianti, Azhari Firmansyah, Rhamal Amir, Aden Dhana Rizkita, and Sintia Ayu Dewi. “Effect Of The Extraction Methods On The Identification Of Caffeine In The Extract Of Dragon Fruit Peel”. Indonesian Journal of Chemical Science 12, no. 3 (November 13, 2023): 278-287. Accessed May 20, 2024. http://journal.unnes.ac.id/sju/ijcs/article/view/75304.