1- Guangming, Z., Ru, J., Guohe, H., Min, X., and Jianbing, L., (2007). “Optimization of wastewater treatment alternative selection by hierarchy grey relational analysis.” J. of Environmental Management, 82, 250-259.
2- Handfield, R., Steven, V., Walton, R. S., and Steven, A. M. (2002). “Applying environmental criteria to supplier assessment: A study in the application of the analytical hierarchy process.” Eur. J. Oper. Res., 141 (1), 70-87.
3- Rossman, L. A. (1980). “Synthesis of waste treatment systems by implicit enumeration.” J. Water Pollut. Control F., 52 (1), 147-160.
4- USEPA. (2002). Development document for the proposed effluent limitation guidelines and standards, EPA, Office of Water, EPA, 821-B-01-007.
5- Tsagarakis, K. P., Mara, D.D., and Angelakis, A. N. (2003). “Application of cost criteria for selection of municipal wastewater treatment systems.” Water Air Soil Pollut., 142 (1-4), 187- 210.
6- Keeny, R. L., and Raiffa, H. (1993). Decision making with multiple objectives: Preferences and value tradeoffs, 1st Ed., Cambridge University Press,Cambridge,UK.
7- Peniwati, K. (2007). “Criteria for evaluating group decision making methods.” Math. Comput. Model, 46
(7-8) 935-947.
8- Ellis, K.V., and Tang, S.L. (1991). “Wastewater treatment optimization model for developing world. I: Model development.” J. of Environmental Engineering Division, 117, 501-581.
9- Ellis, K.V., and Tang, S.L. (1994). “Wastewater treatment optimization model for development world. II: Model testing.” J. of Environmental Engineering Division, 120, 610-624.
10- Saaty, T. L. (1977). “A scaling method for priorities in hierarchical structures.” J. Math. Psychol., 15 (3), 234-281.
11- Tsiporkova, E., and Boeva, V. (2006). “Multi-step ranking of alternatives in a multi-criteria and multi-expert decision making environment.” Inform. Science, 176 (12), 2673-2697.
12- Che-Wei, C., Cheng-Ru, W., Chin-Tsai, L., and Huang-Chu, C. (2007). “An application of AHP and sensitivity analysis for selecting the best slicing machine.” Comput. Ind. Eng., 52 (2), 296-307.
13- Dabaghian, M. R., Hashemi, S. H., Ebadi, T., and Maknoon, R. (2008). “The best available technology for small electroplating plants applying analytical hierarchy process.” Int. J. Environ. Sci. Tech., 5 (4), 479-484.
14- Mianabadi, H., and Afshar, A. (2008). “Multi-attribute decision- marking to rank urban water supply schemes.” J. of Water and Wastewater, 66, 34-45. (In Persian)
15- Perez, M., Rodriguez-Cano, R., Romero, L.I., and Sales D. (2007). “Performance of anaerobic thermophilic fluidized bed in the treatment of cutting-oil wastewater.” Bioresource Technology, 98 (18), 3456-3463.
16- Hajkowicz, S., Young, M., Wheeler, S., MacDonald, D., and Young, D. (2000). “Supporting decisions: Understanding natural resource management assessment techniques.”CSIROLandand Water, <http://www.clw.csiro.au/publications/consultancy/2000/sup port decisions. pdf>, (Apr. 5, 2004).
17- Tchobanoglous, G., and Burton, F. (2003). Wastewater engineering: Treatment, disposal, reuse, 4th Ed., Tata McGraw-Hill, Metcalf and Eddy,New Delhi.
18- Washington State Department of Ecology. (1988). “Water quality program, criteria for sewage works design.” <www.wa.gov/ecology/wq/orange> (March 12, 2009).
19- Larichev, O. I., and Moshkovich, H. M. (1995). “ZAPROS-LM-a method and system for ordering multi attribute alternatives.” European J. of Operational Research, 82, 503-521.
20- Saaty, T.L. (2000). Fundamentals of decision making and priority theory, 2nd Ed., PA: RWS Pub.,Pittsburgh.
21- Boroushaki, S., and Malczewski, J. (2008). “Implementing an extension of the analytical hierarchy process using ordered weighted averaging operators with fuzzy quantifiers in ArcGIS.” Computers and Geosciences, 34, 399-410.
22- Linkov, I., Satterstrom, F.K., Steevens, J., Ferguson, E., and Pleus, R.C. (2007). “Multi-criteria decision analysis and environmental risk assessment for nanomaterials.” J. of Nanoparticle Research, 9, 543-554.
23- Partovi, F. Y. (1994). “Determining what to benchmark: An analytic hierarchy process approach.” Int. J. of Operations and Production Management, 14 (6), 25-39.
24- Mahmoodzadeh, S., Shahrabi, J., Pariazar M., and Zaeri, M. S. (2007). “Project selection by using fuzzy AHP and TOPSIS technique.” International J. of Human and Social Sciences, 30, 333-338.
25- Saaty, T.L. (1980). The analytic hierarchy process: Planning, priority setting, resource allocation, 1st Ed.,McGraw-Hill,New York.
26- Lee, A.H.I., Chen, W.C., and Chang, C.J. (2008). “A fuzzy AHP and BSC approach for evaluating performance of IT department in the manufacturing industry in Taiwan.” Expert Systems with Applications, 34, 96-107.
27- Hosseinali, F., and Alesheikh, A.A. (2008). “Weighting spatial information in GIS for copper mining exploration.” American J. of Applied Sciences, 5, 1187-1198.
28- Ghodsi-pour, S. H. (2007). Analytical hierarchy process (AHP), 5th Ed., Amirkabir University of Tech. Pub.,Tehran. (In Persian)
29- Expert Choice. (2000). Quick start guide & tutorials: User’s manual, PA: Expert Choice Inc.,Pittsburgh.
30- Aragones-Beltran, P., Mendoza-Roca, J.A., Bes-Pia, A., Garcia-Melon, M., and Parra-Ruiz, E., (2009). “Application of multicriteria decision analysis to jar-test results for chemicals selection in the physical–chemical treatment of textile wastewater.” J. of Hazardous Materials, 164, 288-295.