Prof Dr. Hans-Dieter Barke is currently a Senior-expert services, key notes and seminars on chemical education at Riga Technical University in Latvia, University La Sapienza of Roma in Italy, University of Vienna and others in Austria, Loewen University in Brussels, Belgium Universities of St. Petersburg in Moscow, Russia University of Uralsk in Kasachstan, Universities of Sydney and Melbourne in Australia and many others. He has completed his Postdoc time at San Diego State University, California, USA in 1987 and professorship at University of Hannover, Germany in 1992. He has been a pensioner at University of Muenster, Germany since 2013.

Dr Priyambudi Sulistiyanto is Senior Lecturer at College of Humanities, Art and Social Science, Flinders University, Adelaide, Australia. He is a political scientist with teaching interests in the areas of Indonesian politics and comparative politics of Southeast Asia. His current research looks at the Indonesian politics, Southeast Asian Studies, local politics in Southeast Asia and Politics of reconciliation. His current publications include Jokowi's supremacy and his next political battles (In D. Singh and M. Cook, ed. Southeast Asian Affairs. Singapore: ISEAS Publishing, pp. 153-166) and  Enhancing the Bond: Narratives of Indonesian Academics from Two Continents. (In Tim Lindsey & Dave McRae, ed. Strangers Next Door? Indonesia and Australia in the Asian Century UK: Bloomsbury Publishing, pp. 433-442) with Azca and Prabandari. His articles also appeared in The Manipulation of Social, Cultural and Religious Values in Socially Mediated Terrorism and Thailand, Indonesia and Burma in Comparative Perspective. Oxford: Routledge