About Author Erma Sukmanda, S.S.I. e-mail : erma.sukmana.at.itenas.ac.id Office : Institut Teknologi NasionalJl. PH.H. Mustofa No.23, Bandung, IndonesiaPhone : (+62) 7272215 Academic Background ermasukmana Office : Institut Teknologi NasionalJl. PH.H. Mustofa No.23, Bandung, IndonesiaPhone : […] Read More