Fergo, Andre Gunakusuma, and Chanifah Indah Ratnasari. “Evaluation of Octo Mobile User Experience Using the System Usability Scale Method”. Edumatic: Jurnal Pendidikan Informatika 7, no. 1 (June 20, 2023): 151–159. Accessed January 22, 2025. https://e-journal.hamzanwadi.ac.id/index.php/edumatic/article/view/17495.