Fauziah, Uul Ulfah, Achyar Eldine, and Syahlan A Sume. “Sales Promotion Dan Harga Terhadap Volume Penjualan”. Manager : Jurnal Ilmu Manajemen 2, no. 1 (March 7, 2019): 145–160. Accessed November 15, 2024. http://150.107.142.43/index.php/Manager/article/view/1873.