| Exploring Expect A TCL-based Toolkit for Automating Interactive Programs Don Libes 1-56592-090-2  $27.96 | |
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| Practical Programming in Tcl & Tk, Fourth Edition Brent B. Welch, Ken Jones, Jeffrey Hobbs 0-13-038560-3 $53.99CD included | |
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| Tcl and the Tk Toolkit John K. Ousterhout 0-201-63337-X $49.49 | |
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| Tcl/Tk in a Nutshell Paul Raines, Jeff Tranter 1-56592-433-9 $31.49 | |
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