Evaluation of the contamination by arsenic and pesticide in the groundwater of the communities of Tecuaname and El Papalonal located in the municipality of La Paz Centro, department of León-2016. Revista Torreón Universitario, [S. l.], v. 10, n. 28, p. 125–139, 2021. Disponível em: https://revistas.unan.edu.ni/index.php/Torreon/article/view/3095. Acesso em: 6 aug. 2025.