Aliyu, U. S., I. G. Geidam, M. S. Otto, and M. Hussaini. “Investigations of the Elastic Moduli of Er2O3 NPs Doped TeO2 – B2O3 – SiO2 Glasses Using Theoretical Models”. Journal of the Nigerian Society of Physical Sciences 4, no. 1 (February 27, 2022): 9–15. Accessed August 16, 2022. https://www.journal.nsps.org.ng/index.php/jnsps/article/view/222.