Gunawan, Rahmat, Radiman, Cynthia Linaya, Martoprawiro, Muhamad Abdulkadir, AND Dipojono, Hermawan K.. " Graphite as A Hydrogen Storage in Fuel Cell System: Computational Material Study for Renewable Energy" Jurnal ILMU DASAR [Online], Volume 17 Number 2 (1 February 2017)