2017 - university of johannesburg 

2017 - university of johannesburg 

 2016 - university of birmingham

2016 - university of birmingham


 2015 - Pontificia Univerisdad Católica De Chile

2015 - Pontificia Univerisdad Católica De Chile

 2014 - Fudan University

2014 - Fudan University

 2013 - University College Dublin

2013 - University College Dublin


 2012 - The University of Auckland

2012 - The University of Auckland

 2011 - Korea university

2011 - Korea university

 2010 - tecnologico de monterrey

2010 - tecnologico de monterrey


 2008 - University of virginia

2008 - University of virginia

 2007 - university of hong kong

2007 - university of hong kong

 2006 - university of nottingham

2006 - university of nottingham


 2005 - lund university

2005 - lund university

 2004 - university of queensland

2004 - university of queensland

 2003 - university of glasgow

2003 - university of glasgow


 2002 - university of hong kong

2002 - university of hong kong

 2001 - university of british columbia

2001 - university of british columbia

 2000 - national university of singapore

2000 - national university of singapore