KURANG, Rosalina Yuliana; KAMENGON, Rinda Yunita. Phytochemical Test and Antioxidant Activity of Methanol Extract in Arabica Coffee Leaves by Using DPPH Method (1,1-Diphenyl-2-Picrylhydrazyl). Walisongo Journal of Chemistry, [S. l.], v. 4, n. 2, p. 113–118, 2021. DOI: 10.21580/wjc.v4i2.8032. Disponível em: https://journal.walisongo.ac.id/index.php/wjc/article/view/8032. Acesso em: 17 nov. 2025.