Walker, Jeffery T. Statistics in criminology and criminal justice, c2005: eCIP t.p. (Sean Madden) mono. t.p. (Sean Maddan; Dept. of Criminal Justice, Texas Christian Univ.)

TCU bulletin 2005-2006, WWW page, July 12, 2005 (SEAN MADDAN, Lecturer. B.A. (University of Arkansas), 2000; M.A. (University of Arkansas), 2002)

The lower criminal courts, 2019: ECIP t.p. (Sean Maddan) publisher's website ("Associate Professor and Chair of the Department of Social Sciences at Texas A&M International University")

University of West Georgia website, viewed 7/17/2019 cv dated Sept. 7, 2017 (Sean Maddan, Dept. of Criminology; PhD University of Nebraska 2005, in criminal justice; University of Arkansas, MA in Criminal Justice 2002, BA in Criminology 2000); AREAS OF SPECIALIZATION: Criminological Theory, Research Methods, Statistical Applications, Criminal Courts and Processing, Sex Offender Policy)