Preface JPBKP Vol. 9 No. 2 Penulis Preface Preface Penulis DOI: https://doi.org/10.15578/jpbkp.v9i2.346 Unduhan PDF (Bahasa Indonesia) (Inggris) Terbitan Vol 9 No 2 (2014): Desember 2014 Bagian Front Mater
