Hossain, M. A., M. N. I. Khan, and S. S. Sikder. “Complex Permeability and Dielectric Behaviors of Eu3+ Doped Ni-Zn Ferrites”. Journal of Asian Scientific Research, vol. 8, no. 1, Dec. 2017, pp. 21-29, doi:10.18488/journal.2.2018.81.21.29.