Umar Ibrahim, Ibrahim, Muhammad Usman Kaisan, Ibrahim Alhassan Hussain, Isaac Ajunwa, Y.S. Dambatta, and Abubakar Shitu. 2020. “Recent Research on Water Management Problem in Proton Exchange Membrane Fuel Cells: A Brief Review”. Jurnal Mekanikal 43 (2). https://jurnalmekanikal.utm.my/index.php/jurnalmekanikal/article/view/416.