R Suwarman, H., and R. Indrayani. “Gap Quality Analysis of Employee Attendance System Application Using Technology Acceptance Model Approach and Fuzzy Method”. Proceeding Interuniversity Forum for Strengthening Academic Competency, Vol. 1, no. 1, May 2019, pp. 293 -03, http://proceedings.conference.unpas.ac.id/index.php/ifsac/article/view/174.