1. Building construction cost data. (1992). R.S. Means Co. Inc. Construction Consultants and Publishers Kingston Ma.
2. “Guide to Formwork for Concrete ” (1988). 347R-88 American Concrete Institute (ACI) Detroit Mich.
3. Hurd M. K. (1987). “Formwork for concrete.” SP-4 4th Ed. American Concrete Institute (ACI) Detroit Mich.
4. Sommers P. H. (1984). “Charts aid in design of horizontal formwork.” Aberdeen's Concrete Constr. 29(4) 648–651.
5. Spiegel L. and Limbrunner G. F. (1991). Applied statics and strength of materials. Merill/MacMillan Columbus Ohio.