E. Wahdi, “PEMANFAATAN LIMBAH MINYAK GORENG SEBAGAI BAHAN SABUN KRIM CUCI PIRING ARANG AKTIF: Utilization of Waste Cooking Oil as Activated Charcoal Dishwashing Cream Soap”, JSTSV, vol. 13, no. 1, pp. 41–47, Jun. 2023, doi: 10.29244/jstsv.13.1.41-47.