Saragi DDS, Saragih L. Peranan Sales Promotion Representative Terhadap Volume Penjualan Shinzui Pada Pt. Focus Distribusi Nusantara. Manajemen : Jurnal Ekonomi [Internet]. 2019 May 15 [cited 2024 Nov. 22];1(1):47-54. Available from: https://jurnal.usi.ac.id/index.php/JEUSI/article/view/137