1. Senior Lecturer and Undergraduate Coordinator, Department of Public Administration, College of Health and Public Service, University of North Texas, Denton, Texas, USA
2. Associate Professor, Department of Public Administration, College of Health and Public Service, University of North Texas, Denton, Texas, USA
3. Assistant Professor, Department of Criminal Justice and Public Administration Tarleton State University, Stephenville, Texas, U.S.A
4. Associate Professor, Geosciences, Georgia State University, Atlanta, Georgia