Khalil, L. M. M. and 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). Available at: https://alqurtas.alandalus-libya.org.ly/ojs/index.php/qjhar/article/view/672 (Accessed: 6 November 2026).