Abdul Kadir, F. A. “Persepsi Pendengar Kelas Agama Terhadap Pengajian Agama Di Masjid-Masjid Daerah Hulu Langat”. Jurnal Usuluddin, vol. 29, June 2009, pp. 187-05, https://ijie.um.edu.my/index.php/JUD/article/view/7308.