G.S. SANGHA AND N.S. SANDHU. Competencies of the Agricultural Extension Officers Regarding Selection and Use of Extension Methods. Indian Journal of Extension Education, India, v. 16, n. 3-4, p. 43–45, 1980. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/161126. Acesso em: 26 oct. 2025.