A. J. SINGH DHALIWAL & T. S. SOHAL. Extension Contacts in Relation to Adoption of Agricultural Practices and Socio Socio-Economic Status of Farmers. Indian Journal of Extension Education, India, v. 1, n. 1, p. 58–62, 1965. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/159575. Acesso em: 15 jul. 2026.