Al-Mousa, A. M., & Ahmed, R. (2016). Subject-verb agreement errors in Saudi EFL students writing. Al-Imam Muhammad Ibn Saud Islamic Universiry, College of Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Mousa, Abdulrahman Mohammed, و Rafiq Ahmed. Subject-verb Agreement Errors in Saudi EFL Students Writing. Riyadh: Al-Imam Muhammad Ibn Saud Islamic Universiry, College of Languages and Translation, Department of English Language and Literature, 2016.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Mousa, Abdulrahman Mohammed, و Rafiq Ahmed. Subject-verb Agreement Errors in Saudi EFL Students Writing. Al-Imam Muhammad Ibn Saud Islamic Universiry, College of Languages and Translation, Department of English Language and Literature, 2016.