Fathia Bougafa and Rema Tahir (2021) “Evaluation of Vitamin D Status among Populations in Tobruk City, Libya”, AlQalam Journal of Medical and Applied Sciences, 5(1), pp. 13–18. Available at: https://www.journal.utripoli.edu.ly/index.php/Alqalam/article/view/3 (Accessed: 3 May 2025).