[MSDN Library April 2000] SUBSTR( ) Function (100%)
MSDN Library - April 2000 > Visual Studio 6.0 Documentation > Visual FoxPro Documentation > Reference > A to Z Language Reference
[MSDN Library September 1992] SUBSTR Directive Will Not Work if Target Is the Same as Source (14.1382488479263%)
Knowledge Base and Bug Lists > MASM KBase