Ogah, D.M., A.A. Alaga, and M.O. Momoh. “Principal Component Factor Analysis of the Morphostructural Traits of Muscovy Duck”. International Journal of Poultry Science 8, no. 11 (October 15, 2009): 1100–1103. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/1309.