[MSDN Library June 1998] NPER (100%)

MSDN Library Visual Studio 6.0 > Microsoft Office Development > Office 97 Documentation > Excel > Excel 97 Worksheet Functions Reference > Function Reference

[MSDN Library June 1998] NPer Function (33.8900134952767%)

MSDN Library Visual Studio 6.0 > Microsoft Office Development > Office 95 Documentation > Access > Microsoft Access 95 Language Reference > Part 2 A-Z Reference

[MSDN Library June 1998] NPer (24.7873471557682%)

MSDN Library Visual Studio 6.0 > Tools and Technologies > Windows CE Toolkit for Visual Basic 5.0 > Windows CE Toolkit for Visual Basic 5.0 > Windows CE Toolkit for Visual Basic 5.0 Help > Language Reference > Methods

[MSDN Library June 1998] NPer Function (14.1869780161122%)

MSDN Library Visual Studio 6.0 > Microsoft Office Development > Office 97 Documentation > Office > Microsoft Office 97/Visual Basic Language Reference > Volume 5 > Microsoft Visual Basic for Applications Language Reference