Al-Azawi, T. S. S., Majid H. Injidi, A. K. J. Rh,adi, and A. A.W. Habib. “The Role of Melatonin in Maintenance of Immunological Internal Environment”. The Iraqi Journal of Veterinary Medicine 27, no. 1 (June 28, 2003): 208–215. Accessed December 19, 2025. https://jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/1111.