Marpaung, J. J. A., D. F. Ayu, and R. Efendi. “Transparent Soap from Virgin Coconut Oil With Addition of Papaya Fruit Flesh Extract”. JURNAL AGROINDUSTRI HALAL, vol. 5, no. 2, Oct. 2019, pp. 161-70, doi:10.30997/jah.v5i2.1820.