Al-Ammar, A. H., & Gomaa, Y. A. (2014). Enhancing Saudi EFL college students' speaking skill through oral feedback. - Al-Imam Mohammad Ibn Saud Islamic University,College of Langages and Translation, Department of english Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Ammar, Abdullah Humod, و Yasser A. Gomaa. Enhancing Saudi EFL College Students' Speaking Skill Through Oral Feedback. Riyadh: - Al-Imam Mohammad Ibn Saud Islamic University,College of Langages and Translation, Department of english Language and Literature, 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Ammar, Abdullah Humod, و Yasser A. Gomaa. Enhancing Saudi EFL College Students' Speaking Skill Through Oral Feedback. - Al-Imam Mohammad Ibn Saud Islamic University,College of Langages and Translation, Department of english Language and Literature, 2014.