G. M. Karau, E. N. Njagi, A. K. Machocho, and L. N. Wangai, “Phytonutrient, Mineral Composition and In vitro Antioxidant Activity of Leaf and Stem Bark Powders of Pappea capensis (L.)”, Pak. J. Nutr., vol. 11, no. 2, pp. 123–132, Jan. 2012, doi: 10.3923/pjn.2012.123.132.