“Antibacterial Activity Test of 70% Ethanol, 96% Ethanol and Methanol Extracts of Red Kelakai Leaves (Stenochlaena palustris (Burm.F) Bedd) against Cutibacterium acne bacteria” (2023) Journal Borneo, 3(3), pp. 165–175. doi:10.57174/j.born.v3i3.103.