Sitorus Y, Astiti S, Setyadi R. Evaluation Of The Level Of Usefulness Of The “Jeknyong” Application Using The Computer System Usability Questionnare (CSUQ) Method. INISTA [Internet]. 30May2023 [cited 22May2024];5(2):92-03. Available from: https://journal.ittelkom-pwt.ac.id/index.php/inista/article/view/1004