ELECTROSPUN STRONTIUM CROSS-LINKED SULFONATED POLY (ETHER ETHER KETONE) SPEEK NANOFIBER FOR PROTON EXCHANGE MEMBRANE FUEL CELL. JT [Internet]. 2020 May 22 [cited 2024 May 4];82(4). Available from: https://journals.utm.my/jurnalteknologi/article/view/13780