CHANDRA, Hukum; DE, Dipankar; SINGH, R S. Scenario of availability of power sources in Uttar Pradesh agriculture. Journal of Agricultural Engineering, India, v. 37, n. 3, 2006. Disponível em: https://epubs.icar.org.in/index.php/JAE/article/view/14087. Acesso em: 30 jun. 2026.