SHOBHANA GUPTA AND K. L. DANGI. Effectiveness of Training Aids Used by KVK Trainers. Indian Journal of Extension Education, India, v. 49, n. 3&4, p. 63–67, 2013. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/144364. Acesso em: 27 oct. 2025.