Lestari, A., K. Kasim, M. Utami, and G. R. Deksino. “Microwave Absorbing Improvement of Barium M-Hexaferrite by Ni Doping”. International Journal of Social Science Research and Review, Vol. 6, no. 1, Jan. 2023, pp. 320-7, doi:10.47814/ijssrr.v6i1.765.