1. J.M.D. Coey, Magnetism and Magnetic Materials (Cambridge University Press, New York, 2010).
2. Rare earth-cobalt permanent magnets
3. R. Chaudhary and A. Kansal, Int. J. Tech. Res. Appl. 3, (2015).
4. F. Maktum, A.M. S, and W. Suadi, Hybrid File System Pada NAND-Flash SSD Dan HDD Menggunakan Filesystem in User Space (FUSE), Institut Teknologi Sepuluh Nopember, 2012.
5. Y. Darvina and M. Djamal, 191 (2013).