Penulis Demmi P.R.D Buchari Ventje Ilat Inggriani Elim DOI: https://doi.org/10.32400/gc.8.3.25111.2013 Kata Kunci: Abstrak Unduhan PDF (English) Diterbitkan 2013-09-30 Terbitan Vol 8 No 3 (2013) Bagian Articles Lisensi Author keep the copyright of the article published in this journal