Penulis Anggelika S. Nangin Grace B. Nangoi Victorina Z. Tirayoh DOI: https://doi.org/10.32400/gc.13.04.20902.2018 Abstrak Unduhan PDF (English) Diterbitkan 2018-12-31 Terbitan Vol 13 No 04 (2018) Bagian Articles Lisensi Author keep the copyright of the article published in this journal