ZARAMA-ALVARADO, Stephanye. The Challenges of Dealing with Nitrogen Pollutants in Groundwater. Revista Científica, [S. l.], v. 33, n. 3, p. 230–242, 2018. DOI: 10.14483/23448350.13545. Disponível em: https://revistas.udistrital.edu.co/index.php/revcie/article/view/13545. Acesso em: 18 feb. 2026.