Jatashankar Choudhary , B.K. Jha , P.K. Sarkar and R.P. Singh ‘Ratan’. 2017. “Impact of Jharkhand Department of Agriculture on Knowledge, Attitude and Adoption of the Farmers”. Indian Journal of Extension Education 53 (4): 1-6. https://epubs.icar.org.in/index.php/IJEE/article/view/143984.