Rahayu Samalo, Tri Gunaedi, and Dirk Y.P. Runtuboi. “Effectiveness of Ethanol Gel and Essential Oil of Kencur Rhizome (Kaempferia Galanga L.) Base Karbopol Against Propionibacterium Acnes”. Quagga: Jurnal Pendidikan Dan Biologi, vol. 16, no. 1, Jan. 2024, pp. 34-42, doi:10.25134/quagga.v16i1.81.