Al-smaeel, K. M., & Al-Homoud, F. (2013). A corpus-based study on the use of verb as a copula and an auxiliary. Imam Muhammad Ibn Saud Islamic University,College of Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-smaeel, Khulood Mohammad, و Faisal Al-Homoud. A Corpus-based Study on the Use of Verb as a Copula and an Auxiliary. Riyadh: Imam Muhammad Ibn Saud Islamic University,College of Languages and Translation, Department of English Language and Literature, 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-smaeel, Khulood Mohammad, و Faisal Al-Homoud. A Corpus-based Study on the Use of Verb as a Copula and an Auxiliary. Imam Muhammad Ibn Saud Islamic University,College of Languages and Translation, Department of English Language and Literature, 2013.