M .Venkatachalam , B.S. Hansra , M. J. Chandre Gowda and M. Ramasubramanian. “An Analysis of Socio-Economic Impact of Bt Cotton Cultivation in India”. Indian Journal of Extension Education, vol. 49, no. 3&4, Dec. 2013, pp. 24-27, https://epubs.icar.org.in/index.php/IJEE/article/view/144345.