1. Foundations for designing user-centered systems: what system designers need to know about people Ritter, Frank E., London : Springer, 2014. MDIT210
2. Introduction to criminology: theories, methods, and criminal behavior Hagan, Frank E., Thousand Oaks, California : SAGE Publications, Inc., [2023] SOC337
3. Introduction to criminology: theories, methods, and criminal behavior Hagan, Frank E., Thousand Oaks : SAGE Publications, Inc., 2020. SOC337
4. Research methods in criminal justice and criminology Hagan, Frank E., Hoboken, New Jersey : Pearson, [2018] SOC337
