P.N. Jha and H.N. Jani. “In-Service Training Need Hierarchy of Village Level Workers in the New Strategy of Agricultural Production”. Indian Journal of Extension Education 13, no. 1-2 (June 30, 1977): 57–60. Accessed July 15, 2026. https://epubs.icar.org.in/index.php/IJEE/article/view/160817.