Khalil, L. M. M., & Shaban, T. A. M. (2023). Determinates of Spread Vitamin D deficiency in both gender with different age in Tripoli and Al-zawia city Libya. Al-Qurtas Journal for Human and Applied Sciences, 2(الجزء الثاني). Retrieved from https://alqurtas.alandalus-libya.org.ly/ojs/index.php/qjhar/article/view/672