IHSAN, MUHAMMAD, and ADE PERDANA SIREGAR. “THE INFLUENCE OF PROMOTIONAL COST AGAINTS SALES VOLUME PRODUCT BATIK JAMBI SELARAS PINANG MASAK IN JAMBI CITY”. JOURNAL OF BUSINESS STUDIES AND MANAGEMENT REVIEW 1, no. 2 (August 2, 2018): 52-55. Accessed June 17, 2024. https://online-journal.unja.ac.id/jbsmr/article/view/5350.