Abdulhadi, A. S., & Geiselmnn, H. A. (1984). Evaluation of the mathematics curriculum for the intermediate schools in the Eastern Province of Saudi Arabia. Cornell University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abdulhadi, Abdulaziz Saad, و Harrison A. Geiselmnn. Evaluation of the Mathematics Curriculum for the Intermediate Schools in the Eastern Province of Saudi Arabia. New York: Cornell University, 1984.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abdulhadi, Abdulaziz Saad, و Harrison A. Geiselmnn. Evaluation of the Mathematics Curriculum for the Intermediate Schools in the Eastern Province of Saudi Arabia. Cornell University, 1984.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.