Nguyễn Thị Ngọc, M., H. Nguyễn Chí, H. Lại Thị Hải, and Đăng Nguyễn Văn. “Magnetic and Optical Properties of Fe -Doped BaTiO3 Materials at the Structural Phase Boundary”. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY, vol. 4, no. 8, Apr. 2021, pp. 55-60, doi:10.51453/2354-1431/2018/237.