Ginting, Indra, et al. “Formulation and Evaluation of Facial Wash Gel Preparation from Celery Leaf Ethanol Extract (Apium Graveolens L.) Against Staphylococcus Aureus Bacteria”. Jurnal Biologi Tropis, vol. 25, no. 1, Feb. 2025, pp. 373-80, doi:10.29303/jbt.v25i1.8500.