Riris, Ida Duma, Albinus Silalahi, Tita Juwitaningsih, and Wesly Hutabarat. 2019. “Antimicrobial Activities of Some Indonesian Medicinal Plants Against Propionibacterium Acnes (ATCC 27853) and Staphylococcus Epidermis (ATCC 12228) Causing Acne”. Asian Journal of Chemistry 32 (1):41-44. https://doi.org/10.14233/ajchem.2020.22225.