Practical Programming in Tcl and Tk: 0076092024972: Computer Science Books @ Amazon.com
TCL scripting tutorial for beginners - YouTube
Who Uses Tcl
TCL/TK Tool Command Language/Tool Kit. What is TCL? u Tool Command Language u An interpreted programming language Created by John Ousterhout.John Ousterhout. - ppt download
TCL script to find sum of n natural numbers using looping statements - GeeksforGeeks