Murtada, Y. H., & Harland, J. (1992). Vocational education in Saudi Arabia problems and issues. University of London, Institute of Education, Curriculum Studies Department.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Murtada, Yahya Hussain, و Janet Harland. Vocational Education in Saudi Arabia Problems and Issues. London: University of London, Institute of Education, Curriculum Studies Department, 1992.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Murtada, Yahya Hussain, و Janet Harland. Vocational Education in Saudi Arabia Problems and Issues. University of London, Institute of Education, Curriculum Studies Department, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.