Gangaiah, B., I. Ahlawat, and M. Babu. “Response of Nitrogen Fertilization on Bt and Non-Bt Cotton (Gossypium Hirsutum) Hybrids”. SAARC Journal of Agriculture, vol. 11, no. 1, Mar. 2014, pp. 121-32, doi:10.3329/sja.v11i1.18389.