Ali Ibrahim, et al. “Assessing User Experience and Usability in the OVO Application: Utilizing the User Experience Questionnaire and System Usability Scale for Evaluation”. Jurnal RESTI (Rekayasa Sistem Dan Teknologi Informasi), vol. 7, no. 4, Aug. 2023, pp. 953-6, https://doi.org/10.29207/resti.v7i4.5137.