Germany
Leipzig University / Germany

U.S.A
University of Hawai‘i at Mānoa　/　U.S.A

U.S.A
University of Arizona / U.S.A

Canada
University of Victoria / Canada

U.S.A
University of Illinois at Urbana-Champaign / U.S.A

U.S.A
University at Buffalo, U.S.A

Taiwan
Tunghai University/Taiwan

UK
University of Leeds /UK

Taiwan
National Taipei University/Taiwan