Widyastuti E, Fandy Setyo Utomo. Improving User Experience: A Website Quality Analysis of PT. Gratia Jaya Mulya Using Webqual 4.0 and Importance Performance Analysis Methods. JTMI [Internet]. 2025 Jul. 4 [cited 2026 Oct. 23];11(1):47-5. Available from: https://jurnal.unmer.ac.id/index.php/jtmi/article/view/15471