Usman, M., & Gustalika, M. (2022). Pengujian Validitas dan Reliabilitas System Usability Scale (SUS) Untuk Perangkat Smartphone. Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering), 9(1), 19-24. https://doi.org/10.33019/jurnalecotipe.v9i1.2805