Devila R. 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. ECO BUSI ENTRE FINA [Internet]. 2023Apr.3 [cited 2026Jun.24];3(1):146-53. Available from: http://ijebef.esc-id.org/index.php/home/article/view/95