Sandan, F. A. D., Raharja, P. A. and Gustalika, M. A. (2023) “Usability Evaluation and Improvement of iGracias Mobile Application Design Using Usability Testing Method With user-centred Design Approach”, Jurnal E-Komtek (Elektro-Komputer-Teknik), 7(2), pp. 321-328. doi: 10.37339/e-komtek.v7i2.1014.