ma’rifah ulfatul, ardiyansah tri yuli. STUDENTS’ PERSPECTIVE ON “SPADA UMG” ONLINE LEARNING PLATFORM AT UNIVERSITY OF MUHAMMADIYAH GRESIK. DIDAK TIKA [Internet]. 2022 Feb. 10 [cited 2026 Jun. 14];28(1):89-94. Available from: https://journal.umg.ac.id/index.php/didaktika/article/view/3559