Sari, D. M. R., Z. Fanani, and M. Khudzaifi. “Formulation and Physical Evaluation of a Combination of Pegagan Leaf Extract (Centella Asiatica L. Urb) and Patchouli Oil (Patchouli Oil) in Liquid Body Wash Preparation”. Advances in Healthcare Research, vol. 3, no. 2, Aug. 2025, pp. 481-95, doi:10.60079/ahr.v3i2.560.