Al-helabi, L. A., & Al-shwairkh, S. (2008). Online reading in language learning: The role of simplified texts in improving the Saudi female student's vocabulary. Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-helabi, Lamya A., و Sami Al-shwairkh. Online Reading in Language Learning: The Role of Simplified Texts in Improving the Saudi Female Student's Vocabulary. Riyadh: Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2008.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-helabi, Lamya A., و Sami Al-shwairkh. Online Reading in Language Learning: The Role of Simplified Texts in Improving the Saudi Female Student's Vocabulary. Al-Imam Muhammad Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2008.