Andzouana, Marcel, and Jean Bienvenu Mombouli. 2011. “Chemical Composition and Phytochemical Screening of the Leaves of Hymenocardia Ulmoides and Vitex Ferruginea”. Pakistan Journal of Nutrition 10 (12): 1183–1189. https://doi.org/10.3923/pjn.2011.1183.1189.