Al-Harbi, R. H., & Abdelrhman, O. N. B. (2015). The effects of using collocation on enhancing EFL vocabulary learning. Al-Imam Muhammed Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Harbi, Rakan Hamoud, و Omar Na'eem Bani Abdelrhman. The Effects of Using Collocation on Enhancing EFL Vocabulary Learning. Riyadh: Al-Imam Muhammed Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2015.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Harbi, Rakan Hamoud, و Omar Na'eem Bani Abdelrhman. The Effects of Using Collocation on Enhancing EFL Vocabulary Learning. Al-Imam Muhammed Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2015.