Ahmad, N., M. H. Khan, M. Tofique, and I. Rauf. 2011. “INSECT PESTS MANAGEMENT OF BT COTTON THROUGH THE MANIPULATION OF DIFFERENT ECO-FRIENDLY TECHNIQUES”. The Nucleus 48 (3):249-54. http://www.thenucleuspak.org.pk/index.php/Nucleus/article/view/840.