Hilal, I.H., H. l. Abdullah, and A. M. Ibraheem , trans. “Effect of Aluminum Oxide Nanoparticles Films Thickness on Optical Properties”. International Journal of Scientific Research and Management (IJSRM) 6, no. 11 (November 3, 2018): EC–2018. Accessed July 1, 2025. https://ijsrm.net/index.php/ijsrm/article/view/1859.