Salama, A.H., and F.F. Hammad. “Electrical Properties of Lead Borate Glasses Containing Different Alkali Metal Oxides ”. Asian Journal of Chemistry 15, no. 2 (March 30, 2010): 733–745. Accessed November 5, 2024. https://asianpubs.org/index.php/ajchem/article/view/21693.