KARYA ILMIAH DOSEN STIE AL-WASHLIYAH SIBOLGA TAPANULI TENGAH : DRS.H.KAHARUDDIN, S.E., M.A., M.M The Efforts of Increasing the Number of Consumers Reviewing From the Aspect of Business Competition in Pt. Duta Tangkas Utama (DTU) Pondok Batu Central Tapanuli Regency.
STIE AL Washliyah Sibolga-TAPANULI TENGAH
Jl. Padang Sidempuan No.98, Sarudik, Kec. Sarudik, Kab. Tapanuli Tengah, Sumatera Utara