Susilawati, Susilawati, et al. “Synthesis and Characteristics of Nickel Doped Barium M-Hexaferrite (BaFe12O19) by Coprecipitation Method”. Journal of Material Science and Radiation, vol. 1, no. 1, Apr. 2025, pp. 29-35, https://journals.balaipublikasi.id/index.php/jmsr/article/view/364.