Gutiérrez, E., Y. Caldera, N. Fernández, E. Blanco, N. Paz, and Z. Mármol. “Thermophilic Anaerobic Biodegradability of Water from Crude Oil Production in Batch Reactors”. Rev. Téc. Fac. Ing. Univ. Zulia, Vol. 30, no. 2, 1, https://produccioncientificaluz.org/index.php/tecnica/article/view/6137.