P.R.R. SINHA AND G.S. GILL. Training needs of village level workers with special reference to Agricultural subjects. Indian Journal of Extension Education, India, v. 3, n. 1&2, p. 82–89, 1967. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/160359. Acesso em: 15 jul. 2026.