Dian Fitriarni, Assroruddin, Irfan Cholid, and Aris Purnama, “PENGARUH PENAMBAHAN EKSTRAK DAUN SINGKIL (Premna cordifolia) SEBAGAI ANTIOKSIDAN ALAMI TERHADAP KUALITAS MINYAK KELAPA : The Effect of Addition of Singkil Leaf Extract (Premna cordifolia) as A Natural Antioxidant On The Quality of Coconut Oil (Cocus nucifera)”, JIPANG, vol. 5, no. 1, pp. 30-39, Mar. 2023.