参考文書

• PostScript Language Reference Manual, 3rd ed. Adobe Systems Incorporated, ISBN 0-201-37922-8

• The Type 42 Font Format Specification. Adobe Systems Technical Note #5012, July 1998.

• TrueType 1.0 Font Files. Technical Specification Revision 1.66, November 1995 - Microsoft Corporation、ftp.microsoft.com で入手可能。