Ancuelo, A. E., M. M. Landicho, G. A. Dichoso, and P. Sangel. “Superoxide Dismutase (SOD) Activity in Cryopreserved Semen of Itik Pinas-Khaki (Anas Platyrhynchos L.)”. Tropical Animal Science Journal 44, no. 2 (May 26, 2021): 138–145. Accessed December 28, 2025. https://journal.ipb.ac.id/tasj/article/view/31444.