Darmawan W, Sunardi S, Yudhana A. Analysis of Mobile Based Activity Reporting Systems Using Usability Testing Methods and Use Questioners: Analysis of Mobile Based Activity Reporting Systems Using Usability Testing Methods and Use Questioners. Mantik [Internet]. 2020May1 [cited 2026Sep.2];4(1):69-73. Available from: https://www.ejournal.iocscience.org/index.php/mantik/article/view/679