Sarwar, M. “RELATIVE DEGREE OF SUSCEPTIBILITY AND RESISTANCE OF BRASSICA CAMPESTRIS L. GENOTYPES AGAINST APHID MYZUS PERSICAEA FIELD INVESTIGATION”. The Nucleus 50, no. 1 (February 18, 2013): 81–86. Accessed November 22, 2024. http://thenucleuspak.org.pk/index.php/Nucleus/article/view/779.