ملحم جهاد, شويكاني رياض, and ملوك هالا. “Determination the Natural Radioactivity in Some Building Materials”. Latakia University Journal -Basic Sciences Series 42, no. 6 (January 25, 2021). Accessed July 27, 2025. https://journal.latakia-univ.edu.sy/index.php/bassnc/article/view/10320.