Salim, H. K., K. Y. Abdel-Halim, and M. M. Mona. “Comparative Acute Toxicity of Certain Pesticides Against Daphnia Longispina”. Journal of Life Sciences Research, vol. 2, no. 2, June 2015, pp. 40-43, http://mail.asianonlinejournals.com/index.php/Lifsc/article/view/620.