Amanto O, Hamzah MI, Rapani A. PENGARUH BIAYA DIRECT MARKETING, BIAYA PERSONAL SELLING, DAN BIAYA PEMBERIAN DISKON TERHADAP NILAI PENJUALAN PADA PT. TRIJAYA MAKMUR CEMERLANG. Jebi [Internet]. 2016May12 [cited 2025Nov.7];11(1):49-66. Available from: https://jurnal.stiebi.ac.id/index.php/Jebi/article/view/8