Alkufy, F. and Zainab .T. S. 2025. Selectivity A Study of the effect of pH of the Zn substituent ions on the structural and magnetic properties of copper-ferrite complex. Journal of Kufa-Physics. 17, 01 (Jun. 2025), 71–81. DOI:https://doi.org/10.31257/2018/JKP/2025/v17.i01.19129.