Sisilia Lou Kelen, Maria, Taqwa Sultan, and Margaretha Sartien Kabanga. “Social Marketing Strategy Through Digital Campaigns As an Effort to Reduce Plastic Waste in Kupang City”. Economics and Digital Business Review 7, no. 2 (August 31, 2026): 964–975. Accessed September 22, 2026. https://ojs.stieamkop.ac.id/index.php/ecotal/article/view/4174.