Safiah binti Khairuddin. (2019). Classification of Quranic letters based on their characteristics (Sifaat) for supporting Quranic teaching and learning. Kulliyyah of Engineering, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Safiah binti Khairuddin. Classification of Quranic Letters Based on Their Characteristics (Sifaat) for Supporting Quranic Teaching and Learning. Kuala Lumpur: Kulliyyah of Engineering, International Islamic University Malaysia, 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Safiah binti Khairuddin. Classification of Quranic Letters Based on Their Characteristics (Sifaat) for Supporting Quranic Teaching and Learning. Kulliyyah of Engineering, International Islamic University Malaysia, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.