Penulis Yefta Masipuang Ventje Ilat Sherly Pinatik DOI: https://doi.org/10.32400/gc.10.3.8444.2015 Abstrak Unduhan PDF (English) Diterbitkan 2015-09-30 Terbitan Vol 10 No 3 (2015) Bagian Articles Lisensi Author keep the copyright of the article published in this journal