1. Gibson Jr. G. E. and Dumont P. R. (1995). “Project definition rating index for industrial projects.” Research Rep. 113-11 Construction Industry Institute Austin Texas.
2. Gibson Jr. G. E. and Hamilton M. R. (1994). “Analysis of pre-project planning effort and success variables for capital facility projects.” Source document 105 Construction Industry Institute Austin Texas.
3. Gibson Jr. G. E. Kaczmarowski J. H. and Lore Jr. H. E. (1993). “Modeling pre-project planning for the construction of capital facilities.” Source document 94 Construction Industry Institute Austin Texas.
4. Hackney J. W. (1965). Control and management of capital projects Wiley New York.
5. Hackney J. W. (1985). “Applied contingency analysis.” Transactions of the American Association of Cost Engineers B.2.1–B.2.4.