Makki, Sura K., and Tagreed M. Al-Saadi. “Structural and Microstructural Characterization of Cu-Doped NiFe2O4 Nanoparticles Using Williamson-Hall Method”. Ibn AL-Haitham Journal For Pure and Applied Sciences, vol. 38, no. 4, Oct. 2025, pp. 218-29, https://doi.org/10.30526/38.4.4175.