Yunida, Y., Kamaluddin, M., Theodorus, T. and Simangunsong, S. (2022) “Determination Levels of Caffeine Isolated from Robusta Coffee Beans from Pagar Alam in Wistar Rat Blood”, Biomedika, 15(1), pp. 8-15. doi: https://doi.org/10.31001/biomedika.v15i1.1251.