MS, A. U. D.; Syahputri, H.; Nasution, H. M.; Rani, Z. Antibacterial Activity Test of a Combination Gel Containing Ethanol Extracts of Sintrong Leaves (Crassocephalum Crepidioides (Benth.) S. Moore) and Scallion (Allium Fistulosum L.). JPS 2026, 9, 919-938.