Marina, Resi. “Analisis Biaya Promosi Terhadap Peningkatan Volume Penjualan Furniture Pada CV. Dua Putri Di Tanjung Raman Prabumulih”. Management Studies and Entrepreneurship Journal (MSEJ) 2, no. 2 (June 3, 2021): 202–226. Accessed July 5, 2025. https://yrpipku.com/journal/index.php/msej/article/view/225.