Sarwar, M., N. Ahmad, Q. H. Siddiqui, A. Ali, and M. Tofique. “GENOTYPIC RESPONSE IN CANOLA (BRASSICA SPECIES) AGAINST APHID (APHIDAE: HOMOPTERA) ATTACK”. The Nucleus, vol. 41, no. 1-4, July 2020, pp. 87-92, http://thenucleuspak.org.pk/index.php/Nucleus/article/view/1066.