Rubio, I., M. Corro, E. Castillo, L. Galindo, A. Aluja, C. Galina, and C. Murcia. “Factors Related to the Onset of Postpartum Ovarian Activity in Dual Purpose Cattle in the Tropics”. Revista De La Facultad De Agronomía De La Universidad Del Zulia, Vol. 16, no. 6, Jan. 2012, https://www.produccioncientificaluz.org/index.php/agronomia/article/view/26290.