Al-Harbi, K. K., & Al-Rajhi, A. (2014). The Effect of Using Online Games in Learning English Vocabulary in the Case of Saudi EFL Students. Imam Mohammad ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Harbi, Khawla Khodiar, و Ali Al-Rajhi. The Effect of Using Online Games in Learning English Vocabulary in the Case of Saudi EFL Students. Riyadh: Imam Mohammad ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Harbi, Khawla Khodiar, و Ali Al-Rajhi. The Effect of Using Online Games in Learning English Vocabulary in the Case of Saudi EFL Students. Imam Mohammad ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2014.