KUMAR, ABHAY; SINGH, R K P; SINGH, K M; MISHRA, J S. Economics of paddy (Oryza sativa) production: A comparative study of Bihar and Punjab. The Indian Journal of Agricultural Sciences, Delhi, India, v. 88, n. 2, p. 314–319, 2018. DOI: 10.56093/ijas.v88i2.79225. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/79225. Acesso em: 15 jul. 2026.