Eemy Nurbaety, and Rohmadi. “The The Influence of Purchasing Power and Service Quality on Sales Levels Fitra Shopp Online Shop in East Lampung Regency: Introduction, Result, Discussion, Material and Methods, Conclusions, and References”. Journal of Economic and Business Analysis 1, no. 2 (December 10, 2023): 62–71. Accessed November 4, 2025. https://businessandfinanceanalyst.com/index.php/JEBA/article/view/86.