P. Ramachandran and K.B. Sripal. “Constraints in Adoption of Dryland Technology for Rainfed Cotton”. Indian Journal of Extension Education 26, no. 3&4 (December 31, 1990): 74–76. Accessed October 25, 2025. http://epubs.icar.org.in/index.php/IJEE/article/view/159494.