“An Analysis of the Impact of Promotion Strategies on Buying Decision and Buying Amount on Dunkin’ Donuts Jambi”. International Journal of Economics Development Research (IJEDR) 3, no. 2 (May 23, 2022): 84–101. Accessed May 22, 2026. https://journal.yrpipku.com/index.php/ijedr/article/view/396.