Professor of Psychology, California State University, San Bernardino

Catedrático de Psicologíade los Grupos y las Organizaciones (URJC)

Leuphana University of Lüneburg

Professor in Occupational Therapy at Jönköping University, School of Health and Welfare

Netherlands Interdisciplinary Demographic Institute (NIDI)

Lecturer of Finance, Universiti Malaysia Sabah

University of Texas at Arlington

Laval University

Universidad del Valle