"Development of the Post-Conflict Constitutionalism in Cambodia (1993-2003), in Asia Law Review, Vol.3, no.2, December 2006, pp.73-99.

"Nation Building and Cambodian Constitutionalism in Transition", in Constitutionalism and Constitutional Adjudication in Asia, Sung Nak-in (ed.), College of Law, Seoul National University and Korea Legislation Research Institute, 2005, pp.43-60.

Judicialization of the World Trading System - Implications for Regulation of Regional Integration under GATT/WTO、名古屋大学国際開発研究フォーラム第21巻　2002．3.

Co-translator and co-editor, Khmer translation of the textbook on "Minpo e no shotai" (An Introduction to the Civil Code) by Professor IKEDA Masao, Keio University, Japan, 2003, (Khmer).

April 2004 - Present

Associate Professor, Center for Asian Legal Exchange, Nagoya University, JAPAN

April 2002 - March 2004

Research Associate, Center for Asian Legal Exchange, Nagoya University, JAPAN

October 1993 - September 1996

Human Rights Assistant, the Legal Assistance Unit, United Nations Center for Human Rights (later renamed "Office of the High Commissioner for Human Rights"), Cambodia.

July 1992 - September 1993

Senior Translator, Information/Education Division of the United Nations Transitional Authorities in Cambodia (UNTAC)

September - December 1994: United Nations Center for Regional Development scholar on "Legislative Arrangement for Development Planning of Cambodia", Tokyo and Nagoya, Japan

From April 2007: Part-time visiting fellow at Kansai University Faculty of Law, member of the Research Group on Legal Cultures in Asia.

Member of the Japanese Association of International Law

Member of the Japanese Association of International Economic Law

Member of the Japanese Society of Comparative Law