About Author Teddy Irnata, A.Md. e-mail : teddyirnata.at.itenas.ac.id Office : Institut Teknologi NasionalJl. PH.H. Mustofa No.23, Bandung, IndonesiaPhone : (+62) 7272215 Academic Background teddyirnata Office : Institut Teknologi NasionalJl. PH.H. Mustofa No.23, Bandung, IndonesiaPhone : […] Read More