Al-Olabi, A. . “Examples of the Different Recurrent Modes of Recitation and the Effects of Tawjih Al-Qiraah on Them: Five Selected Examples from Surah Al-Kahf (The Cave) from the Fifteenth Chapter of the Quran”. Journal of College of Sharia and Islamic Studies, vol. 24, no. 1, Jan. 2006, doi:10.29117/jcsis.2006.0026.