Parmenter, D. Key performance indicators: Developing, implementing, and using winning KPIs.
Lua i Stíl Chicago (17ú heag.)Parmenter, David. Key Performance Indicators: Developing, Implementing, and Using Winning KPIs.
Lua MLA (8ú heag.)Parmenter, David. Key Performance Indicators: Developing, Implementing, and Using Winning KPIs.
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