J. Ghazai A, A. Salman E, A. Jabbar Z. Effect of Aluminum Doping on Zinc Oxide Thin Film Properties Synthesis by Spin Coating Method. ASRJETS-Journal. 2016;26(3):202-211. Accessed September 14, 2025. https://asrjetsjournal.org/American_Scientific_Journal/article/view/2280