Penulis Stephanie Selina Sheren Wowor Inggriani Elim Sonny Pangerapan DOI: https://doi.org/10.32400/gc.12.01.17210.2017 Abstrak Unduhan PDF (English) Diterbitkan 2017-09-27 Terbitan Vol 12 No 01 (2017) Bagian Articles Lisensi Author keep the copyright of the article published in this journal