Hassan , Shahla Fathola, and Husham jaafar musa Albayati. “Micromineral Additives (Zinc, Selenium, Copper) and Their Physiological Roles in Ruminant Nutrition: Article Review”. American Journal of Biology and Natural Sciences 2, no. 7 (July 31, 2025): 322–335. Accessed August 20, 2025. https://biojournals.us/index.php/AJBNS/article/view/1294.