Atika Rahmadani Utami Br Ginting, Sarah Astiti and Khairun Nisa Meiah 2024. Evaluasi Usability Aplikasi English Competency Test (ECT) Menggunakan Metode Computer System Usability Questionner (CSUQ): Studi Kasus Pusat Bahasa Institut Teknologi Telkom Purwokerto. EduInovasi:  Journal of Basic Educational Studies. 4, 3 (Sep. 2024), 1485–1499. DOI:https://doi.org/10.47467/edu.v4i3.4294.