L. T. T. Tuyen, Đào A. Quang, T. T. Tâm Toàn, T. Q. Tùng, and T. T. Hòa, “PARAMETERS AFFECTING PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE BY CeO2-DOPED TiO2 NANOTUBES”, hueuni-jns, vol. 127, no. 1B, pp. 15-26, May 2018.