A. Guntarti, N. Sugihartini, S. A. Umaiyah, and N. Salamah, “Determination of Total Phenolic Levels in Ethanol Extract of Moringa (Moringa oleifera L.) Leaves based on Differences in Growing Sites”, J. Food Pharm. Sci, vol. 9, no. 1, pp. 403-411, Mar. 2021.