إدريس محمد علي ه. (2007). Use of Bacillus thuringensis (Berliner) and Insect Growth Regulator Nomolt to Control Schizaphis graminum (Rondani). College of Basic Education Research Journal, 5(3), 99–108. https://doi.org/10.33899/berj.2007.Vol5.Iss3.39218