Tarihoran, D., and A. Manaf. 2016. “Studi Efek Bentuk Butiran Ukuran Bervariasi Terhadap Sifat Kemagnetan Magnet Permanen”. Indonesian Journal of Physics 13 (3), 159-61. https://ijphysics.fi.itb.ac.id/index.php/ijp/article/view/55.