Ali, T. and Hamed, A. 2007. Effect of Melia azadirchta Fruit extract on the eggs, embryo and Juveniles of the fresh water snail Physa acuta ( Draparnaud) , at different experimental tern per a tures. Journal of Education and Science (JES). 20, 2 (Oct. 2007), 1–10. DOI:https://doi.org/10.33899/edusj.2007.162783.