ali, Rehab Abd Al Hussin, Hashim Ali Yusr, and soudad S. bassam. 2020. “The Magnetic Switch Manufacturing by Using Ferrofluid and Ferrofluid Doped Copper Nanoparticles”. Iraqi Journal of Physics 18 (46): 39-45. https://doi.org/10.30723/ijp.v18i46.511.