S. S, S. V, W. J. Basirun, and I. Zainol, “Proton Conductivity and FTIR Studies of Methanesulfonic Acid (MSA) Incorporated Polyacrylamide based Composite Solid Polymer Electrolyte”., IJSBAR, vol. 22, no. 1, pp. 303–314, May 2015, Accessed: Sep. 13, 2025. [Online]. Available: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/3821