Elkhouly, A.R, Ebtihaj Elkholify, Saja Elmousy, and Sojood Elmousy. “Age-Related Variations in Serum Calcium, Iron, Vitamin D, and Thyroid Hormone Levels Among Residents of Rigdaleen, Al-Jumail, and Sabratha, Libya: Volume 16 - Issue (1)-Journal of Applied Science - 2026”. Journal of Applied Science (June 27, 2026). Accessed November 13, 2026. https://jas.sabu.edu.ly/index.php/JS/article/view/322.