Bidgoli, Hossein, (2004). The Internet Encyclopedia, Volume 1, John Wiley & Sons, Inc. p. 707. Bailor, Coreen (2006-07-05). "For CRM, ERP, and SCM, SAP Leads the Way". Retrieved 2007-03-29. ^ L. Wylie, "A Vision of Next Generation MRP II", Scenario S-300-339, Gartner Group, April 12, 1990...