BHARAT SINGH, R.S. NARWAL AND JOGINDER S. MALIK. Communication Sources Used by Extension Personnel and Farmers. Indian Journal of Extension Education, India, v. 39, n. 1-2, p. 26–30, 2024. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/161754. Acesso em: 15 jul. 2026.