Nugraheni, E., Zuhairi, A., Sajati, I. M., PKH, S. Y., & Isman, S. M. . (2012). STUDENTS PERCEPTION ON QUALITY ASSURANCE SYSTEM OF DISTANCE EDUCATION AT UNIVERSITAS TERBUKA. Jurnal Pendidikan Terbuka Dan Jarak Jauh, 13(1), 19–33. Retrieved from https://jurnal.ut.ac.id/index.php/jptjj/article/view/408