Hassen, I. and Younes, J. 2006. Phenotypic development and eye development in the embryonic and early regenerative phases of the amphibian plum Neurergus crocatus Cope. Journal of Education and Science. 18, 4 (Jun. 2006), 43–66. DOI:https://doi.org/10.33899/edusj.2006.77667.