Dr. Usman Ahmed. “اولیت ِ جمع قرآن کی روایات اور تطبیقات وترجیحات: The Traditions about First Compiler of the Quran: Reconciliation and Meaningfulness”. Al Qalam, Vol. 23, no. 2, Dec. 2018, pp. 1-15, https://alqalamjournalpu.com/index.php/Al-Qalam/article/view/2332.