Ali, T., طالب, Hamed, A., & أزهر. (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), 1–10. https://doi.org/10.33899/edusj.2007.162783