Okuo, J. M., and I. M. Ejimadu. “Blood Clotting Effect of Leaf Extracts of Bryophyllum Pinnatum: Short Communication”. Biological Sciences - PJSIR, vol. 48, no. 2, Apr. 2005, pp. 126-7, https://v2.pjsir.org/index.php/biological-sciences/article/view/1357.