Elshafei, A. (1969). Monte Carlo Simulation Technique Applied to Queuing Models. The Institute of National Planning.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Elshafei, Alwalid. Monte Carlo Simulation Technique Applied to Queuing Models. Cairo: The Institute of National Planning, 1969.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Elshafei, Alwalid. Monte Carlo Simulation Technique Applied to Queuing Models. The Institute of National Planning, 1969.