Universitas Islam Negeri Maulana Malik Ibrahim

Professor of Education Emerita,Vanderbilt.Edu

Emerita Professor of Education, Rutgers Graduate School of Education

Pace University, Professor Emeritus

School of Education, University of Delaware

İnönü Üniversitesi Eğitim Fakültesi EBB

Professor of Special Education, University of Cincinnati

School of Education, Baylor University

Professor and Senior Scientist, University of Kansas

Professor New York University