Penulis Maya Ariesti Vinastri Jenny Morasa Sonny Pangerapan DOI: https://doi.org/10.32400/gc.14.1.22474.2019 Kata Kunci: Abstrak Unduhan PDF (English) Terbitan Vol 14 No 1 (2019) Bagian Articles Lisensi Author keep the copyright of the article published in this journal