“Development of Nanoparticles of Alumina by Sol-Gel Method Using Inorganic Aluminum Salts as Precursors”, Pakistan Journal of Scientific & Industrial Research, vol. 49, no. 1, pp. 77–81, Jun. 2006, Accessed: Mar. 10, 2026. [Online]. Available: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/1229