Al-Duwaihi, A. S., & Al Semari, O. (2013). The role of guessing in improving english vocabulary with EFL sixth graders. Al-Imam Mohammed Bin Saud Islamic University,College Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Duwaihi, Abrar Saad, و Othman Al Semari. The Role of Guessing in Improving English Vocabulary with EFL Sixth Graders. Riyadh: Al-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-Duwaihi, Abrar Saad, و Othman Al Semari. The Role of Guessing in Improving English Vocabulary with EFL Sixth Graders. Al-Imam Mohammed Bin Saud Islamic University,College Languages and Translation, Department of English Language and Literature, 2013.