Iswandaru, Rafli Satria, and Aries Dwi Indriyanti. “Sales Performance Classification of Promotional Products Using Data Mining”. Journal of Emerging Information Systems and Business Intelligence (JEISBI) 7, no. 2 (April 28, 2026): 213–220. Accessed October 2, 2026. https://ejournal.unesa.ac.id/index.php/JEISBI/article/view/75897.