Al-Shiha, S. M., & Al-Rajhi, A. (2011). The Impact of PEDs as compared to PDs on vocabulary reception and production and theretention of meaning for EFL learners. 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-Shiha, Shadin M., و Ali Al-Rajhi. The Impact of PEDs as Compared to PDs on Vocabulary Reception and Production and Theretention of Meaning for EFL Learners. Riyadh: Al-Imam Muhammad Ibn Saud Islamic University,College of Languages and Translation, Department of English Language and Literature, 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Shiha, Shadin M., و Ali Al-Rajhi. The Impact of PEDs as Compared to PDs on Vocabulary Reception and Production and Theretention of Meaning for EFL Learners. Al-Imam Muhammad Ibn Saud Islamic University,College of Languages and Translation, Department of English Language and Literature, 2011.