YOUNES, M. S. I. A. (2019). Evaluation of the Effects of Social and Cultural Differences in Learning English as a Secondary Language.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)YOUNES, MOHAMMED SOBHY IBRAHIM ABDELHAMID. Evaluation of the Effects of Social and Cultural Differences in Learning English as a Secondary Language. 2019.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)YOUNES, MOHAMMED SOBHY IBRAHIM ABDELHAMID. Evaluation of the Effects of Social and Cultural Differences in Learning English as a Secondary Language. 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.