S2,  Memorial University of New Foundland, Canada

S3, Memorial University of New Foundland, Canada

S2,  The George Washington University

S3,  University of North Carolina – Charlotte

S2,  Heriot-Watt University, Scotland

S3, UIN Sunan Ampel, Surabaya

S2, Institut Teknologi Sepuluh Nopember (ITS), Surabaya

S3,  Hiroshima University