el hefny, a. (1965). decision making systems in management. National Planning Institute.
Chicago Style (17th ed.) Citationel hefny, amina. Decision Making Systems in Management. cairo: National Planning Institute, 1965.
MLA引文el hefny, amina. Decision Making Systems in Management. National Planning Institute, 1965.
警告：這些引文格式不一定是100％准確.