Penulis Donald Rizardhold Wilar Anderson Guntur Kumenaung Debby Christina Rotinsulu DOI: https://doi.org/10.35794/jpekd.10247.17.2.2015 Abstrak Unduhan PDF (English) Diterbitkan 2019-07-09 Terbitan Vol 17 No 2 (2015) Bagian Articles