AL-Mallah, M., مزاحم, Zidan, sahla, & سهلة. (2007). Comparison of three methods in the cultivation of cellular pendants derived from the Kalas, which is the technology of landfill in cattle. Journal of Education and Science (JES), 20(1), 570–580. https://doi.org/10.33899/edusj.2007.162841