1. Wei, C., 2007.Evaluating the Performance of an ERP System Based on the Knowledge of ERP Implementation Objective. International Journal of Advances Manufacturing Technology, pp.168-181.
2. Koch, C. and Wailgum, T., 2008.ERP Definition and Solutions. Retrieved in 2008 from www.cio.com/article/40323/ERP_Definition_and_Solutions.
3. Botta-Genoulaz, V. and Millet, P., 2005. An Investigation Into the Use of ERP Systems in the Service Sector. International Journal of Production Economics, 99, pp. 202-221.
4. West, R., and Daigle, S.L., 2004.Total Cost of Ownership: A Strategic Tool for ERP Implementation. EDUCAUSE Center for Applied Research.
5. Kimberling, E. 2010. ERP Implementation Costs and Durations Declined Last Year, but So Did Business Benefits Realized. Panorama Consulting Solutions. Retrieved March 2012 from http://panorama-consulting.com/2010-erp-report-erp-implementation-costs-and-durations-declined-last-year-but-so-did-business-benefits-realized/.