AncueloA. E., LandichoM. M., DichosoG. A., and SangelP., “Superoxide Dismutase (SOD) Activity in Cryopreserved Semen of Itik Pinas-Khaki (Anas platyrhynchos L.)”, Trop. Anim. Sci. J., vol. 44, no. 2, pp. 138-145, May 2021.