Comparative Phytochemical Evaluation of Indonesian Single-Origin Arabica Coffees: Caffeine, Total Phenolic Content, and DPPH Antioxidant Activity. Pharmaceutical and Biomedical Sciences Journal (PBSJ), [S. l.], v. 8, n. 1, p. 146–156, 2026. DOI: 10.15408/pbsj.v8i1.51354. Disponível em: https://journal.uinjkt.ac.id/index.php/pbsj/article/view/146-156. Acesso em: 15 jul. 2026.