Ysambertt, F., J. Paredes, and N. Márquez. “Analysis of Copper and Zinc Content in the Drinking Water of Maracaibo City. A Technical Note”. Rev. Téc. Fac. Ing. Univ. Zulia 19, no. 1 (1). Accessed December 5, 2025. https://produccioncientificaluz.org/index.php/tecnica/article/view/5498.