Bahaaldeen Baha. kamal, Aynur, and Manaf A.Hassan al-azzawi. “A Study of Optical Properties of Tetraborate Glasses Containing CaO, MgO & BaO”. Journal of Education and Science (JES) 30, no. 1 (March 1, 2021): 10–23. Accessed August 6, 2025. https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23917.