1. R. Sholihah and M. Zainuri, “The effect of Impedance on La0.67Sr0.33Mn1-xTixO3 Material for Electromagnetic Wave Absorbers,” M.Si. thesis. University of Indonesia, 2011.
2. Sulistyo and I. Marhaendrajaya, “Synthesis and Characterization of Substituted Barium Hexaferrite Magnetic Materials Using So-gel Theory for Application of Microwaves Uptake at X-Band Frequency,” Berkala Physics Vol 15(2), 2012, pp. 63–68.
3. M. Ginting and P. Sebayang, “Manufacture of Isotropic Permanent Magnets based on Nd-Fe-B and their Characteristics. Indonesian Journal of Technology 29 (1), 2006, pp. 27–30.
4. Synthesis of ZnO nanoparticles through the impregnated layer combustion synthesis process
5. E. D. Putra, “Synthesis of Mn Ferrite Powder with Calcination Method at Low Temperature,” M.Si. thesis, Semarang State University, 2011.