Distinguished Research Fellow, CRRAR, University of Windsor

University of Arizona

Professor Emeritus, University of London

College of Humanities, Arts and Social Sciences, Flinders University

Faculty of Law, University of Brawijaya

Professor of Civil Law, Pamulang University, Banten

lecturer of law faculty UJB

European University at St. Petersburg (Европейский Университет в Санкт-Петербурге)

New Generation Network Scholar

Universitas Negeri Padang