S. H. El-durssi, I. .; O.S. El-Awami, I. .; S. mahmoud, G. .; A. Benkhaial, F. Experimental Studies on the Effects of Chlorpyrifos on Rats IV. Biochemical Changes in Level of Certain Enzymes. mjsc 2007, 14 (1), 9-17. https://doi.org/10.54172/mjsc.v14i1.681.