↑ Carol Taylor Fitz-Gibbon (1990), "Performance indicators", BERA Dialogues (2), ISBN 978-1-85359-092-4 Citation title of source Performance indicators url of source https://books.google.com/books?id=uxK0MUHeiI4C year 1990 author Carol Taylor Fitz-Gibbon journal BERA Dialogues issue 2 isbn 978-1-85359-092-4 ISBN 978-1-85359-092-4 ↑ Key Performance Indicators – What Are Key Performance Indicators or KPI ↑ Pursuit of Performance Excellence: Business Success through Effective Plant Operations Metrics.