van Solingen, R. (1999). The goal/question/metric method : a practical guide for quality improvement of software development: The goal/question/metric method : a practical guide for quality improvement of software development (1. izd.). McGraw-Hill Book Company.
Chicago stil citiranjavan Solingen, Rini. The goal/question/metric method : a practical guide for quality improvement of software development: The goal/question/metric method : a practical guide for quality improvement of software development. 1. izd. McGraw-Hill Book Company, 1999.
MLA stil citiranjavan Solingen, Rini. The goal/question/metric method : a practical guide for quality improvement of software development: The goal/question/metric method : a practical guide for quality improvement of software development. 1. izd. McGraw-Hill Book Company, 1999.