HAINIL, S.; SUHAERA, S.; LIRTRI, L. Quantitative Analysis of Caffeine Levels in Local Coffee (Coffea sp) Powder on Dabo Island with UV-Vis Spectrophotometry. Borneo Journal of Pharmacy, Palangka Raya, Indonesia, v. 2, n. 2, p. 82–86, 2019. DOI: 10.33084/bjop.v2i2.897. Disponível em: https://journal.umpr.ac.id/index.php/bjop/article/view/897. Acesso em: 2 may. 2024.