Hoang, Sy Tai, and Ngoc Tran. 2023. “Studying Optical Spectral of Tb3+ and Sm3+ Ions Co – Doped in Alkali Borate Glasses”. Dong Thap University Journal of Science, no. 33 (June):77-80. https://doi.org/10.52714/dthu.33.8.2018.611.