M. Irhas, M. Mahmud, and R. Rumainur, “Peningkatan Kualitas Hafalan Al - Quran Melalui Media Audio Speaker Al-Quran Di Hsg Khoiru Ummah Loa Janan Ilir Samarinda”, bjpe, vol. 1, no. 1, pp. 55-75, Feb. 2021.