SINHA, D K; SINGH, K M; AHMAD, NASIM; CHAHAL, V P; MEENA, M S. Natural resource management for enhancing farmer’s income: An optimal crop planning approach in Bihar. The Indian Journal of Agricultural Sciences, Delhi, India, v. 88, n. 4, p. 641–646, 2018. DOI: 10.56093/ijas.v88i4.79147. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/79147. Acesso em: 27 oct. 2025.