“Effect of Heat and Cold Stress on Incidence of Retained Placenta in Cows in Thi-Qar Province”. Al-Shatrah Veterinary and Biological Sciences Journal, vol. 1, no. 1, Jan. 2024, pp. 55-85, https://svbsj.shu.edu.iq/index.php/svbsj/article/view/25.