Nguyễn Thị Ngọc, M., Nguyễn Chí, H., Lại Thị Hải, H. and Nguyễn Văn, Đăng 2021. Magnetic and optical properties of Fe -doped BaTiO3 materials at the structural phase boundary. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY. 4, 8 (Apr. 2021), 55–60. DOI:https://doi.org/10.51453/2354-1431/2018/237.