OKERULU I. O., et al. “Accessment of the Phytochemicals, Proximate & Elemental Composition of Chrysophyllum Africanum (Udara)”. Innovare Journal of Food Sciences, vol. 3, no. 1, Jan. 2015, pp. 1-3, https://www.journals.innovareacademics.in/index.php/ijfs/article/view/3685.