American Heritage Dictionary of the English Language , 3rd ed., Houghton Mifflin, Boston, 1992 .
Duncan, W.R., A Guide to the Project Management Body of Knowledge , Project Management Institute, Upper Darby, PA, 1994 .
Harry, M., The Vision of Six Sigma: A Roadmap for Breakthrough , 5th ed., Vol. II, Tri Star Publishing, Phoenix, AZ, 1997 .
Johnson, R.B. and Melicher, R.W., Financial Management , 5th ed., Allyn and Bacon, Inc., Boston, 1982 .
Kerzner, H., Project Management: A Systems Approach to Planning, Scheduling and Controlling , 5th ed., Van Nostrand Reinhold, New York, 1995 .
Stamatis, D.H., Total Quality Service , St. Lucie Press, Delray Beach, FL, 1996 .
Turner, J. R., The Handbook of Project-Based Management , McGraw-Hill, New York, 1992 .
Weston, J. F. and E.F. Brigham, Essentials of Managerial Finance , 3rd ed., Dryden Press, Hinsdale, IL, 1974 .