Hasin, B.M., A.J.M. Ferdaus, M.A. Islam, M.J. Uddin, and M.S. Islam. “Marigold and Orange Skin As Egg Yolk Color Promoting Agents”. International Journal of Poultry Science 5, no. 10 (September 15, 2006): 979–987. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/658.