"Some Properties of Bismuth Glass Solubility Visual Containing 15% of Zinc Oxide Mall With Concentrated Phosphoric Acid". مجلة بغداد للعلوم, م 3, عدد 4, مارس، 2021, ص 631-6, https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/748.