Thapa, Prakash, Sung Gi Kwon, Jin Lee, and Gye Choon Park. “Hybrid System of Proton Exchange Membrane Fuel Cell (PEMFC) With Battery for Portable Power Supply”. International Journal of Engineering & Technology 7, no. 3.34 (September 1, 2018): 542–546. Accessed May 5, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/19377.