Yulianti, Yulianti, Lukiyana Lukiyana, and Imam Suryono. “The Impact of Free Strategy and Delivery Speed on Consumer Satisfaction With the Level of Ease of Product Return As a Moderation Variable on Shopee Marketplace Users in DKI Jakarta”. International Journal of Economics Development Research (IJEDR) 6, no. 5 (September 30, 2025): 2940–2955. Accessed November 18, 2025. https://journal.yrpipku.com/index.php/ijedr/article/view/8773.