Professor of Psychology, National and Kapodistrian University of Athens

Department of Mathematics, Faculty of Science, University of Tabuk PO Box 741, Tabuk …

Professor of Educational Psychology, University of Warwick

Unviersity of West Georgia

Full Professor Of Pathology, Vet. Med., Cairo University

Professor of Mathematics, George Washington University

Syracuse University

Penn State University Libraries

Assistant professor of mathematics

Seniour Lecturer