CH. SHANKARIAH AND K.N. SINGH. Predictive analysis of factors related with knowledge of improved and practices of vegetable cultivation. Indian Journal of Extension Education, India, v. 3, n. 1&2, p. 67–73, 1967. DOI: 10.48165/. Disponível em: https://epubs.icar.org.in/index.php/IJEE/article/view/160352. Acesso em: 15 jul. 2026.