Zalkha Soraya, Iftitah Resky Az-zahra J, Rajmia Sulianti, Wulandari Wulandari, Tri Ananda, Ulfatun Mutmainah, and Ismar Ismar. “The Influence of Cashback and Free Shipping Promotions on Purchase Decisions of Economics Students ”. Global Economics: International Journal of Economic, Social and Development Sciences 2, no. 3 (June 23, 2025): 01–14. Accessed March 3, 2026. https://economics.ifrel.org/index.php/GlobalEconomics/article/view/273.