Azubuike Awomukwu, Bio Louis Nyananyo, Chiedozie Joel Uka, Clement Uwabunkeonye Okeke, Daniel. " Identification of the Genus Phyllanthus (Family Phyllanthaceae) in Southern Nigeria using Comparative Systematic Morphological and Anatomical Studies of the Vegetative Organs" Global Journal of Science Frontier Research [Online], (9 May 2015)