Rahmadi AN, Sudarmiatin, Wardana LW. The Influence of Product Quality and Digital Marketing on Customer Loyalty in Coffee Bean Products at Titik Tuju Kediri. RISK [Internet]. 2023 Dec. 1 [cited 2024 May 13];4(2):133-40. Available from: https://ojs.unik-kediri.ac.id/index.php/risk/article/view/5206