Sitanggang, Ramli. “Mapping and Analysis Experiment on Film Thickness Reducing in Gas Diffusion Layers of PEM Fuel Cell”. Eksergi 15, no. 2 (November 14, 2018): 59–67. Accessed July 17, 2025. https://jurnal.upnyk.ac.id/index.php/eksergi/article/view/2453.