Thi Minh Hue, Do, Thi Tuyet Mai, Nguyen, Van Chau, Tran, Thi Thu Huyen, Tran, Thi Lan, Nguyen, Ngoc Dung, Ta, AND Dang Chinh, Huynh. " Research Synthesis of La3+ Doped TiO2 Nanoparticles by Hydrothermal Method, Study on Photocatalytic Activity of Decomposition of Methylene Blue under Ultraviolet Irradiation" VNU Journal of Science: Natural Sciences and Technology [Online], Volume 35 Number 3 (20 September 2019)