Suroto, Suroto, Aina Nindiani, and Humiras Hardi Purba. “Students’ Satisfaction on Academic Services in Higher Education Using Importance-Performance Analysis”. ComTech: Computer, Mathematics and Engineering Applications 8, no. 1 (March 31, 2016): 37–43. Accessed July 9, 2025. https://journal.binus.ac.id/index.php/comtech/article/view/3776.