Intan Cahya Wulandari, Parlagutan Silitonga. Increasing Purchasing Decision Goals at Ketapang Roast Coffee Through Social Media Interaction. MARCOPOLO [Internet]. 2023 May 31 [cited 2026 Aug. 25];1(4):235-52. Available from: https://www.journal.formosapublisher.org/index.php/marcopolo/article/view/4381