& Al- Mallah, Mansor. 2017. “EFFECT OF SUB -LETHAL DOSE OF SOME INSECT GROWTH INHIBITORS ON SOME PHYSICAL FEATURES OF WINGS CUTICLE OF AMERCINCA COCKROACH PERIPLANETA AMERICANA”. IRAQI JOURNAL OF AGRICULTURAL SCIENCES 48 (5). https://doi.org/10.36103/ijas.v48i5.335.