002 Canvas-Documentation-on-tkdocs.com
https://tkdocs.com/tutorial/canvas.html

003 Tkinter-Grid-columnspan-Demo-Repl
https://repl.it/@appbrewery/grid-columnspan-demo#main.py

005 w3schools-Python-Writing-to-File-Documentation
https://www.w3schools.com/python/python_file_write.asp

005 Entry-Widget-Docs-on-tkdocs.com
https://tkdocs.com/tutorial/widgets.html#entry

007 w3schools-Python-join-method-Documentation
https://www.w3schools.com/python/ref_string_join.asp

007 Pyperclip-documentation-on-PyPi
https://pypi.org/project/pyperclip/

007 Course-Fixes-Report-an-Issue
https://forms.gle/fpNEQooYBX25gcG67