?url_ver=Z39.88-2004&rft_id=10.1109%2FICP.2018.8533209&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=G.&rft.aulast=Witjaksono&rft.au=Witjaksono%2C+G.&rft.date=2018&rft.title=Analysis+of+Tunable+Energy+Band+Gap+of+Graphene+Layer&rft.isbn=9781538611876&rft.genre=proceeding