Kusuma, Sulfadli Adijaya, et al. “Analysis of Factors Affecting Changes in Sales Volume With Sales Report Data PT. Gudang Garam Tbk (2018-2022)”. Southeast Asia Journal of Business, Accounting, and Entrepreneurship, vol. 2, no. 1, Dec. 2023, pp. 27-34, https://dailymakassar.id/ejournal/index.php/sains/article/view/11.