Al-Fallay, I. (1994). The Impact of background knowledge on the proficiency of Saudi Arabian students learning English as a foreign language. University of New Mexico.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Fallay, Ibrahim. The Impact of Background Knowledge on the Proficiency of Saudi Arabian Students Learning English as a Foreign Language. Mexico: University of New Mexico, 1994.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Fallay, Ibrahim. The Impact of Background Knowledge on the Proficiency of Saudi Arabian Students Learning English as a Foreign Language. University of New Mexico, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.