Abu Ghaida, R. M., & Sheir, A. A. (2008). The effectiveness of the direct versus indirect teaching of pronunciation problematic areas of English as a foreign language in the upper basic stage in Jordan. Amman Arab University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abu Ghaida, Rana Mahmoud, و Awatef Ali Sheir. The Effectiveness of the Direct Versus Indirect Teaching of Pronunciation Problematic Areas of English as a Foreign Language in the Upper Basic Stage in Jordan. Amman, Jordan: Amman Arab University, 2008.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abu Ghaida, Rana Mahmoud, و Awatef Ali Sheir. The Effectiveness of the Direct Versus Indirect Teaching of Pronunciation Problematic Areas of English as a Foreign Language in the Upper Basic Stage in Jordan. Amman Arab University, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.