Sharma, Sanjay Kumar. 2018. “Influence of Brevicoryne Brassicae L. Incidence on the Yield of Marketable Cabbage Heads under Different Insecticide Spray Regimes in Highlands of Himachal Pradesh (India)”. Bangladesh Journal of Botany 44 (3):351-58. https://doi.org/10.3329/bjb.v44i3.38539.