Widyastuti, Endar, and Fandy Setyo Utomo. 2025. “Improving User Experience: A Website Quality Analysis of PT. Gratia Jaya Mulya Using Webqual 4.0 and Importance Performance Analysis Methods”. Jurnal Teknologi Dan Manajemen Informatika 11 (1):47-57. https://doi.org/10.26905/jtmi.v11i1.15471.