Professor of Public International Law, Legal Practitioner; pioneer Pro-Chancellor, Ritman …

Associate Professor of International Environmental Law, Derby Law School, University of …

Professor of International Law, University of Aberdeen

University of Fort Hare

University of the West of England

Senior Lecturer, University of Nigeria Enugu Campus

Universidade Portucalense

Asst. Professor of African Union Law and Human Rights, Addis Ababa University

Addis Ababa University