Al-Ghamdi, A. S., & Matthews, J. I. (1987). Comparison of two teaching methods for learning a computer-programming language. University of Tennessee, Knoxille.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Ghamdi, Ahmed Sahab, و John I. Matthews. Comparison of Two Teaching Methods for Learning a Computer-programming Language. Tennessee: University of Tennessee, Knoxille, 1987.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Ghamdi, Ahmed Sahab, و John I. Matthews. Comparison of Two Teaching Methods for Learning a Computer-programming Language. University of Tennessee, Knoxille, 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.