fadli, reica. “MAKING ORGANIC SOLID SOAP FROM PALM OIL, OLIVE OIL, AND PURE COCONUT OIL (VCO) WITH COFFEE POWDER AND COFFEE AROMA: Laboratorium Pendidikan IPA”. SEMESTA: Journal of Science Education and Teaching 6, no. 2 (December 31, 2023): 63–71. Accessed October 7, 2026. https://semesta.ppj.unp.ac.id/index.php/semesta/article/view/210.