“Model Program Khutbah Jumat Di Masjid Al-Ikhlash Surabaya: Perspektif Manajemen Operasi”. 2019. Masjiduna : Junal Ilmiah Stidki Ar-Rahmah 2 (1): 26-42. https://doi.org/10.52833/masjiduna.v2i1.49.