Agustina S, Zainal Arifin, Bayu Surindra. The Effect of Promotion Strategy and Product Quality on Customer Satisfaction Yan`s Coffee Kediri City. IJERFA [Internet]. 2024 Oct. 27 [cited 2026 Apr. 21];3(1). Available from: https://backupijerfa.afdifaljournal.com/index.php/ijerfa/article/view/213