Malki, F. M. S., & Lungstrum, R. M. (1986). A study of educational personnel attitudes toward vocational education in Jeddah, Saudi Arabia. University of Pittsburgh.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Malki, Fouad Mohammed Said, و Ruth M. Lungstrum. A Study of Educational Personnel Attitudes Toward Vocational Education in Jeddah, Saudi Arabia. Pittsburgh: University of Pittsburgh, 1986.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Malki, Fouad Mohammed Said, و Ruth M. Lungstrum. A Study of Educational Personnel Attitudes Toward Vocational Education in Jeddah, Saudi Arabia. University of Pittsburgh, 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.