Author(s): Syahdan Syahdan,

Date: May 21, 2015

Publisher: Lembaga Penelitian dan Pengabdian Masyarakat, STIT Palapa Nusantara

Author(s): Syahdan Syahdan,

Date: May 21, 2014

Publisher: Lembaga Penelitian dan Pengabdian Masyarakat, STIT Palapa Nusantara