Devila, Rego. “ANALISIS HUBUNGAN PROMOSI TERHADAP VOLUME PENJUALAN SEMEN TONASA DI WILAYAH PASAR KALIMANTAN TIMUR: ANALYSIS OF PROMOTION RELATIONSHIP ON TONASA CEMENT SALES VOLUME IN EAST KALIMANTAN MARKET AREA”. Indonesian Journal of Economy, Business, Entrepreneuship and Finance 3, no. 1 (April 3, 2023): 146–153. Accessed April 18, 2026. http://ijebef.esc-id.org/index.php/home/article/view/95.