Zaila, N., T. Tutik, and V. Z. Octonaris. “Effect of Phenolic Levels on the Activity of Bacteria Propionibacterium Acnes in Cassava Extract Ointment Preparations Manihot Esculenta”. Jurnal EduHealth, vol. 17, no. 01, Jan. 2026, pp. 280-5, https://ejournal.seaninstitute.or.id/index.php/healt/article/view/7656.