do Rego, E.L., Gomes, D.B., da Silva Junior, J., Herok, D.L., Porto, E.D. de O. and Leite, O.D. 2017. Evaluation of Physic-chemical Parameters of Water Quality on Agricultural Fields of Western Bahia. Orbital: The Electronic Journal of Chemistry. 9, 2 (May 2017), 105-110.