Systems Theory and Structural Functionalism
Although structural functionalism finds its roots much earlier than systems theory, as researchers use it today, it is based on systems theory. This book chapter sets forth an approach for using systems theory and structural functionalism as frameworks and models for research.
John Fisher. "Systems Theory and Structural Functionalism" 21st Century Political Science: A Reference Handbook. Ed. John T. Ishiyama and Marijke Breuning. Thousand Oaks, CA: Sage, 2010. 71-80.
Available at: http://works.bepress.com/john_fisher/5