Andrian R, Islami F, Arlis S. Customer Relationship Management Increasing Curtain Sales with Importance Performance Analysis and Customer Satisfaction Index Methods. jcsitech [Internet]. 2025 Jan. 31 [cited 2026 Apr. 19];11(1):25-30. Available from: https://jcsitech-upiyptk.org/ojs/index.php/jcsitech/article/view/132