Burrill, G. F., Kanold, T. D., Cummins, J. J., & Yunker, L. E. (1995). Merrill Geometry: Applications and Connections. New York:Glencoe/McGraw-Hill.
Hirsch, C., R., Norton, M. A., Coblentz, D. O., Samide, A. J., & Schoen, H. L. (1987).Geometry. Glenview, IL: Scott, Foresman and Company.
Jurgensen, R. C., Brown, R. G., & Jurgensen, J. W. (1988). Teacher's Edition Geometry. Boston: Houghton Mifflin Company.
Rubenstein, R. N., Craine, T. V., & Butts,T.R. (1995). Teacher's Edition Integrated Mathematics. Boston: Houghton Mifflin Inc.