Jie, Wun Sun, et al. “Anatomy and Developmental Morphology of Medicinal Plants Jatropha Curcas and Jatropha Podagrica (Euphorbiaceae) (22 - 30)”.
EDUCATUM Journal of Science, Mathematics and Technology, vol. 1, no. 1, June 2014, pp. 22-30,
https://ejournal.upsi.edu.my/index.php/EJSMT/article/view/65.