Firmansyah, Deri, Dwinanto P. Susetyo, Asep Suryana, and Dadang Saepuloh. “Volume Penjualan: Analisis Pendekatan Regresi Data Panel”. Asian Journal of Management Analytics 1, no. 2 (November 11, 2022): 109–124. Accessed May 16, 2026. https://journal.formosapublisher.org/index.php/ajma/article/view/1479.