Efforts to Improve PBI/Acid Membrane System for High Temperature Polymer Electrolyte Membrane Fuel Cell (HT-PEMFC)Nur Anati Bazilah Daud, Ebrahim Abouzari Lotf, Saidatul Sophia Sha’rani, Mohamed M. Nasef, Arshad Ahmad and Roshafima Rasit AliE3S Web Conf., 90 (2019) 01002DOI: https://doi.org/10.1051/e3sconf/20199001002