G. E. F. Irawan, M. Syamsuddin, V. F. Bahari, and S. Suprianto, “Utilizing Used Cooking Oil for Aromatherapy Candle Production”, Ind. Jour. Cul. Comm. Dev, vol. 16, no. 1, p. DOI 10.21070/ijccd.v16i1.1157, Oct. 2024.