Gunawan Putri, S., and S. Kaliu. “Antibacterial Activity of Cocoa Leaf Extract Theobroma Cacao L. Against Acne-Causing Bacteria Cutibacterium Acnes and Staphylococcus Epidermidis”. BIOEDUSCIENCE, vol. 6, no. 3, Dec. 2022, pp. 288-93, doi:10.22236/jbes/6310267.