آذر، ع. (1394). تحقیق در عملیات: مفاهیم و کاربردهای برنامهریزی خطی (چاپ ششم)، تهران: انتشارات سمت.
                                                                                                                داناییفرد، ح.، الوانی، س. م.، آذر، ع. (1392). روششناسی پژوهش کمی در مدیریت: رویکردی جامع (چاپ دوم)، تهران: انتشارات صفار.
                                                                                                                Azar, A. (2015). Operation Research: Concepts and applications of linear programming. Tehran: Oloume Novin. (in Persian) 
                                                                                                                Bazaraa, M.S. & Jarvis, J.J. Sherali, H.D. (2010). Linear Programming and Network Flows. New Jersey: A John Wiley & Sons, Inc.
                                                                                                                Campbell, G.M. & Diaby, M. (2002). Development and evaluation of an assignment heuristic for allocating cross-trained workers. Euro Journal Operation Research, 138(1), 9-12.
                                                                                                                Chen, L.H. & Lu, H.W. (2007). An extended assignment problem considering multiple inputs and outputs. Applied Mathematical Modelling, 31(10), 2239-2248.
                                                                                                                Chen, L.H. & Lu, H.W. (2008). Responses and comments to "A comment on An extended assignment problem considering multiple inputs and outputs".  Applied Mathematical Modelling, 32(11), 2463–2466.
                                                                                                                Danaeifard, H. & Alvani, S.M. & Azar, M. (2007). 
Qualitative research methodology in management: a comprehensive approach. Tehran: 
Safar. 
 (
in Persian) 
                                                                                                                 Dorf, R.C. & Svoboda, J.A. (2014). 
Introduction to Electric Circuits. California: 
Vaibhav Goel.
                                                                                                                 Fried, H.O. & Lovell, C.A.K. & Turner, J.A. (1996). An analysis of the performance of university-affiliated credit unions. Computer Operation Research, 23 (4), 375–384.
                                                                                                                Hiller, G. & Liberman, B. & Frederick, S. (2002). Introduction to Operations Research. Mc Graw. Hill.
                                                                                                                Jahanshahloo, G.R. & Afzalinejad, M. (2008). A comment on "An extended assignment problem considering multiple inputs and outputs". Applied Mathematical Modelling, 32(11), 2459–2462.
                                                                                                                Kao, C. & Liu, S.T. (2000). Data envelopment analysis with missing data: an application to university libraries in Taiwan. Journal of Operation Research, 51(8), 897–905.
                                                                                                                Lewin, A.Y. & Minton J.W. (1986). Determining organizational effectiveness: another look, and agenda for research. Management Science, 32(5), 514-538.
                                                                                                                Marianoa, E.B. & Sobreirob, V.A. & Rebelattoc, D.A.N. (2015). Human development and data envelopment analysis: A structured literature review. Omega, 54, 33-49.
                                                                                                                Nilsson, J.W. & Riedel, S.A. (2011). Electric Circuits. New Jersey: Prentice Hall.
                                                                                                                Süer, G.A. & Bera, I.S. (1998). Optimal operator assignment and cell loading when lot-splitting is allowed. Computers & Industrial Engineering, 35(4), 431–434.