K. Hamdani and Zain-ul-Abideen, “فـواتح السور الحروف المقطعة وعلاقتها بالأمر: Alphabetical Openings of Chapters of Quran and their Relationship with Imperative Verbs”, alwifaq, vol. 1, no. 1, pp. 1–11, Jun. 2018.