Frederick T.T.N, Jais Lias, M. K. Ahmad, Shazleen Ahmad Ramli, M. A. H. Hamdan, Kim Seng Ng, M. H. Mamat, and M. Y. Ahmad. “Influence of Water Source and Electrolyte PH on Hydrogen Production Efficiency in Laboratory-Scale PEM Electrolysis”. International Journal of Integrated Engineering 18, no. 7 (November 2, 2026): 108–122. Accessed November 8, 2026. https://journal.uthm.edu.my/index.php/ijie/article/view/26162.