Mekki, Dafaalla M., Bian Liang-yong, Wang Jin-yu, Yang Yan, Li Lin-chuan, Yu Yabo, and Hassan H. Musa. 2006. “Differential Expression Levels Assessment of Avian E2A Gene in Two Chinese Indigenous Duck Breeds (Anas Platyrhynchos) by Semi-Quantitative RT-PCR”. International Journal of Poultry Science 5 (9): 895–899. https://doi.org/10.3923/ijps.2006.895.899.