Sarker, P. K., Rahman, M. M., & Das, B. C. (2011). Varietal Preference of <i>Lipaphis erysimi</i> (Kaltenbach) on Three Species of <i>Brassica</i>. Journal of Bio-Science, 17, 145–148. https://doi.org/10.3329/jbs.v17i0.7123