P. K. JAISWAL, P. N. SHANNA AND M. S.BISEN. Cropping Pattern under Different Farming Situations of Northern Hill Region of Chattisgarh. Indian Journal of Extension Education, India, v. 26, n. 3&4, p. 97–99, 1990. DOI: 10.48165/. Disponível em: http://epubs.icar.org.in/index.php/IJEE/article/view/159534. Acesso em: 25 oct. 2025.