Afriansyah, A., Walhidayat, W., Novendra, R., Harefa, L. and Sutejo, S. 2022. Usability Testing on Tracer Study System Using The Heuristic Evaluation Method. Journal of Applied Engineering and Technological Science (JAETS). 3, 2 (Jun. 2022), 178–184. DOI:https://doi.org/10.37385/jaets.v3i2.807.