Abd El Hamid, R.K., I. K. Battisha, and N.A.M Shahin. “Silica Gel Doped With Cobalt Oxide Prepared by Sol-Gel Technique; Improving Dielectric Charge Storage”. JOURNAL OF ADVANCES IN PHYSICS 20 (November 24, 2022): 316–329. Accessed November 21, 2024. https://rajpub.com/index.php/jap/article/view/9324.