B.A. (Honours),B.C.L., M.A., D.Phil and D.C.L.(Oxford),

Docteur en Droit; D.E.S. D.I. Pub. (Diplôme´d´ Etudes Supérieures de Droit International Public) (Paris) ;

LL.M. (Harvard);

Of the Middle Temple, Barrister-at-law (U.K.)

Diplôme´de  l´Académie de Droit international de la  Haye

Dean, Faculty of Law, Rangsit University;

Distinguished Professor Emeritus of International and Comparative Law,

Golden Gate University School of Law, San Francisco, U.S.A.;

Former Ambassador of Thailand to the Benelux and EEC, to Japan, to France, Portugal and UNESCO; and to Italy , Greece, Israel and FAO.

Membre Titulaire de l´institut de Droit International;

Corresponding Collaborator of UNIDROIT;

Former Commissioner of E. 3 Panel of United Nations Compensation Commission (UNCC);

Former Member of the ICSID Panels of Conciliators and of Arbitrators (World Bank);

Former President of ASEAN- ID Arbitral Tribunal  

Former Fulbright Professor of International Law and World Affairs,

(University of North Carolina at Charlotte, U.S.A.;)

Former Robert and Marion Short Professor of International Law and International Human Rights,(University of Notre Dame, U.S.A.; )

Former Professor of International Economic Law, National (University of Singapore  (NUS).)

Former Cleveringa Professor of International Law and International Relations  (University of Leiden, the Netherlands.)