SANKARANARAYANAN, K, P NALAYINI, and C S PRAHARAJ. 2013. “Multi-Tier Cropping System to Enhance Resource Utilization, Profitablity and Sustainablity of Bt Cotton (Gossypium Hirsutum) Production System”. The Indian Journal of Agricultural Sciences 82 (12): 1044–50. https://doi.org/10.56093/ijas.v82i12.26252.