PREM, Guru; JHORAR, Raj Kumar; MIEGEL, Konrad; MITTAL, S B. Nitrate Occurrence in Groundwater: A Case Study from Haryana. Journal of Agricultural Engineering, India, v. 45, n. 1, 2008. Disponível em: https://epubs.icar.org.in/index.php/JAE/article/view/14564. Acesso em: 30 jun. 2026.