“The Effect of Quartz Sand on Structural and Optical Properties of Dy3+ Doped P2O5-CaO-BaO-Gd2O3 Glasses”. Journal of the Physical Society of Indonesia 1, no. 2 (October 31, 2025): 136–144. Accessed November 5, 2025. https://journal.fisika.or.id/index.php/jpsi/article/view/58.