N.C. DAS, H S.P. SINHA AND RAJIV RANJAN. Information Gain in Kisan Mela. Indian Journal of Extension Education, India, v. 11, n. 1-2, p. 19–24, 1975. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/160391. Acesso em: 15 jul. 2026.