DASH, Ch. J.; SARANGI, A; SINGH, D K. Spatial and Temporal Variation of Nitrate-N in Groundwater at IARI Farm. Journal of Agricultural Engineering, India, v. 49, n. 2, 2012. Disponível em: https://epubs.icar.org.in/index.php/JAE/article/view/24264. Acesso em: 29 oct. 2025.