Mustafa, H., D. Jameel, H. Salim, and S. Ahmed. “The Effects Of N-GaAs Substrate Orientations on The Electrical Performance of PANI/N-GaAs Hybrid Solar Cell Devices”. Science Journal of University of Zakho, Vol. 8, no. 4, Dec. 2020, pp. 149-53, doi:10.25271/sjuoz.2020.8.4.773.