Yunida, Yunida, Muhammad Kamaluddin, Theodorus Theodorus, and Sonlimar Simangunsong. “Determination Levels of Caffeine Isolated from Robusta Coffee Beans from Pagar Alam in Wistar Rat Blood”. Biomedika 15, no. 1 (September 22, 2022): 8-15. Accessed June 20, 2024. http://ejurnal.setiabudi.ac.id/ojs/index.php/biomedika/article/view/1251.