B. K. Singh , Ambrish Kumar Sharma , Nishi Sharma , R. P. Singh Ratan , Valaria Lakra and Kishan Singh. “Enhancing Productivity and Profitability of Tribal Farmers of Jharkhand through Institutional Linkages”. Indian Journal of Extension Education 52, no. 3&4 (December 30, 2016): 35–39. Accessed October 26, 2025. https://epubs.icar.org.in/index.php/IJEE/article/view/144104.