Al-Shammary, E. A. (1983). A Study of motivation in the learning of English as foreign language in Intermediate and Secondary schools in Saudi Arabia. Indian University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Shammary, Eid A.S. A Study of Motivation in the Learning of English as Foreign Language in Intermediate and Secondary Schools in Saudi Arabia. Indian: Indian University, 1983.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Shammary, Eid A.S. A Study of Motivation in the Learning of English as Foreign Language in Intermediate and Secondary Schools in Saudi Arabia. Indian University, 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.