Nguyen Tri Tuan, Tong Thi Hao Tam, Nguyen Tu, Do Quang Trung, Nguyen Van Du, Tran Minh Tien, Vu Thi Hang, Nguyen Trong Tuan, Nguyen Van Quang, and Manh Trung Tran. “Effect of Annealing Temperature and Doping Concentrations on Structure and Optical Properties of Eu³⁺-Doped TiO₂ Nanomaterials”. Vietnam Journal of Science, Technology and Engineering 66, no. 1 (March 15, 2024): 10-15. Accessed July 18, 2025. https://vietnamscience.vjst.vn/index.php/vjste/article/view/1180.