Ocampo, M. B., Manuel, J. A., Soriano, R. P., and Ocampo, L. C. “Chromosome complement and developmental competence of swamp buffalo oocytes matured and fertilized in vitro”. International Journal of Agricultural Technology, vol. 11, no. 1, Jan. 2015, pp. 57-68, https://li04.tci-thaijo.org/index.php/IJAT/article/view/5998.