O. S. Kolawole, M. A. Jimoh2, F. Yakubu, and E. C. Chukwuma, “Taxonomic value of the leaf micro-morphology and quantitative phytochemistry of Jatropha integerrima Jacq. and Jatropha podagrica Hook. (Euphorbiaceae)-known horticultural plants in Nigeria”, An. biol., no. 39, pp. 55–62, Mar. 2017.