Junior High School Teacher

Professor Emeritus, SOAS, University of London

College of International Studies, Korea University

The University of British Columbia Okanagan

Professor of Management and Organization, Dokuz Eylul University Faculty of Business

Hankuk University of Foreign Studies

Syracuse University

Senior Lecturer in International Relations, University of Groningen

Professor Emeritus Korean Studies, Leiden University

Professor, Cesar EA Virata School of Business, University of the Philippines