Ormachea Valdez, Edwin, Bilo Calsin C., and Enrique Zegarra O. “Kinetics and Sperm Morphometry in Sexed and Conventional Frozen Semen of Brown Swiss Bulls”. Revista de Investigaciones Veterinarias del Perú 30, no. 1 (March 4, 2019): 500–506. Accessed July 17, 2024. https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/15961.