L.K. DHALIWAL, S. S. HUNDAL, J. S. KULAR, ANAND ANEJA and SARABJOT KAUR CHAHAL (2006) “Mustard aphid (Lipaphis erysimi Kalt) incidence in raya in relation to crop phenology and growing degree-days”, Journal of Agrometeorology, 8(1), pp. 54–59. doi: 10.54386/jam.v8i1.874.