صادق feryal, and الحلفي حسام. “Some Biological Studies of the Cotton Leaf-Worm Spodoptera Littoralis (Boisd.) Lepidoptera: Noctuidae”. Journal of Biotechnology Research Center, vol. 11, no. 2, June 2017, pp. 35-40, doi:10.24126/jobrc.2017.11.2.518.