Paramita, Nanda, Andhi Fahrurroji, and Bambang Wijianto. “Optimasi Sabun Cair Ekstrak Etanol Rimpang Zingiber Officinale Rosc. var.Rubrum Dengan Variasi Minyak Jarak Dan Kalium Hidroksida”. Journal of Tropical Pharmacy and Chemistry 2, no. 5 (December 31, 2014): 272–282. Accessed September 12, 2026. https://jtpc.jurnalfamul.com/index.php/jtpc/article/view/76.