Al-Zahrani, M. A., & Hamdan, M. (2013). Spelling acquisition stages of Saudi students: Grades 7 and 9 \. Imam Mohammed Bin Saud Islamic University, College Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Zahrani, Muteb A., و Mohammad Hamdan. Spelling Acquisition Stages of Saudi Students: Grades 7 and 9 \. Riyadh: Imam Mohammed Bin Saud Islamic University, College Languages and Translation, Department of English Language and Literature, 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Zahrani, Muteb A., و Mohammad Hamdan. Spelling Acquisition Stages of Saudi Students: Grades 7 and 9 \. Imam Mohammed Bin Saud Islamic University, College Languages and Translation, Department of English Language and Literature, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.