“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” (2021) Revista Torreón Universitario, 10(28), pp. 125–139. Available at: https://revistas.unan.edu.ni/index.php/Torreon/article/view/3095 (Accessed: 6 August 2025).