Kasimov , Dilmurod, and Feruza Sultanova. “MICROELEMENTS - ZINC, IRON, COPPER AND MAGNESIUM AND THEIR PHYSIOLOGICAL IMPORTANCE FOR THE CHILD’S BODY”. International Journal of Scientific Pediatrics 2, no. 12 (February 7, 2024): 431–440. Accessed March 17, 2026. https://old.ijsp.uz/index.php/journal/article/view/200.