Hukum Administrasi Negara, Faculty of Law, Universitas Sebelas Maret Surakarta

Universidad del Rosario, Facultad de Jurisprudencia, GI Derechos Humanos

Law School, University of New England, Armidale, NSW, Australia

Associate Professor of Law, Deakin University

University of Namibia

Professor of Law, University of Auckland

Council for Geoscience

El Colegio de San Luis

Professor of Law, University of Western Australia

Academia at Law University of Brawijaya