Calvert, Charles, Calvert, Marjorie, Kaster, John, and Swart, Bob, 2002, Kylix Developer's Guide: Indianapolis, Indiana, Sams, 960 p.
Cantù, Marco, 2003, Mastering Delphi 7: San Francisco, Sybex, 1011 p.
Konopka, Ray, 1997, Developing Custom Delphi 3 Components: Scottsdale Arizona, Coriolis, 725 p.
O'Rourke, Joseph, 1998. Computational Geometry in C, Second Edition, Cambridge University Press, Cambridge, 376 p.
Shemitz, Jon, 2002, Kylix—The Professional Developer’s Guide and Reference: New York, Apress, 942 p.
Shimrat, M. 1980. Algorithm 112, Position of Point Relative to Polygon, in Hanson, R. J. (editor) Collected Algorithms from ACM, Association for Computing Machinery, Inc. New York, p. 112-p 1- 0
Thorpe, Danny, 1997, Delphi Component Design: Reading Massachusetts, Addison Wesley, 348 p.