Sayuti, Kesuma, Rina Yenrina, Cesar Welya Refdi, and Prima Yaumil Fajri. “Adenine, Guanine, Xanthine and Hypoxanthine Content in Various Indonesian Foods”. Pakistan Journal of Nutrition 18, no. 3 (February 15, 2019): 260–263. Accessed August 31, 2025. https://pjnonline.org/pjn/article/view/2700.