ABDEL KERIM, I. A., SHEBL, D. E. A. (2002). 'BIOLOGICAL PARAMETERS FOR EVALUATING THE EFFECT OF INSECT GROWTH REGULATORS AGAINST GRASSHOPPER, EUPREPOCNEMIS PLORANS PLORANS CHARP. AND COTTON LEAFWORM, SPODOPTERA LITTORALIS (BOISD.)', Egyptian Journal of Agricultural Research, 80(2), pp. 571-581. doi: 10.21608/ejar.2002.306539