Jumaryadi Y, Mahdiana D. USABILITY TESTING OF BUDI LUHUR UNIVERSITY E-LEARNING SYSTEM USING SYSTEM USABILITY SCALE. J. Tek. Inform. (JUTIF) [Internet]. 2022Aug.20 [cited 2024Dec.22];3(4):1099-107. Available from: http://jutif.if.unsoed.ac.id/index.php/jurnal/article/view/275