S. A. Mohammed; J. Al-Zanganawee; O. A. Muwaffaq. The Effect of Double Doping With Copper and Tin on the Structural and Optical Properties of Nickel Oxide Nanoparticles Prepared by Sol-Gel Method. Acad. Sci. J. 2023, 1 (4), 149-168. https://doi.org/10.24237/ASJ.01.04.687C.