Munahar, Suhaili. “Analisis Dampak Pemanfaatan Waktu Luang Di Kampus Terhadap Prestasi Belajar Mahasiswa”. ISLAMIKA 1, no. 1 (January 31, 2019): 22-31. Accessed September 24, 2019. https://ejournal.stitpn.ac.id/index.php/islamika/article/view/151.