Suastiyanti, D., Y. N. Maulida, and M. Wijaya. “Improving Magnetic Properties of BiFeO<sub>3</sub>-BaFe<sub>12</sub>O<sub>19</Sub> Solid Solution by Different Sintering Time and Temperatures of Sol-Gel Method”. Asian Journal of Applied Sciences, vol. 7, no. 5, Oct. 2019, doi:10.24203/ajas.v7i5.5926.