Nathanael P, Nugraha J, Wicaksono S. Usability Testing with Cognitive Walktrough KORONA Point of Sales. JUSTINFO [Internet]. 2025 Jan. 1 [cited 2025 Aug. 5];2(1):161-9. Available from: https://journal.widyatama.ac.id/index.php/justinfo/article/view/2122