Halim, Yuniwaty, et al. “Pemanfaatan Buah Leunca (Solanum Nigrum L.) Dalam Pembuatan Minuman Sari Buah (Utilization of Black Nightshade (Solanum Nigrum L.) in the Making of Fruit Juice)”. FaST : Jurnal Sains Dan Teknologi, vol. 2, no. 1, May 2018, pp. 58-70, https://ojs.uph.edu/index.php/FaSTJST/article/view/1017.