Pengaruh penambahan polyaniline terhadap karakterisasi komposit epoxy resin/grafit sintesis dan carbon black sebagai material pelat bipolar untuk polymer electrolyte membrane fuel cell = The influence of polyaniline addition on characterization of composite epoxy resin/synthetic graphit and carbon black as bipolar plate material for polymer electrolyt membrane fuel cell (PEMFC) (Fakultas Teknik Universitas Indonesia, 2009)