About Author Agus Yayan Sopian e-mail : agus.yayan.at.itenas.ac.id Office : Institut Teknologi NasionalJl. PH.H. Mustofa No.23, Bandung, IndonesiaPhone : (+62) 7272215 Academic Background agusyayan Office : Institut Teknologi NasionalJl. PH.H. Mustofa No.23, Bandung, IndonesiaPhone : […] Read More