1. What Is Cost Planning in the Construction World?;Johnson,2018
2. 11 Contingency-Planning Tips;Fry,2013
3. 4 Types of Cost Contingency;Spacey,2017
4. Project Variables Influencing Contingency on Construction Contract in Nigeria;Bello,2009
5. Contingency estimation using a real options approach;Tseng;Constr. Manag. Econ.,2009