Brasil
Universidade Federal de Santa Catarina
Universidade Federal des Santa Maria
Universidade Federal de Sao Carlos
Universidade Federal Rural do Semi-Arido
Canada
(Research Co-operation)
University of Western Ontario
Indonesia
Catholic University Atma Jaya, Jakarta
Mexico
Tec Monterrey
Namibia
Polytechnic of Namibia
Thailand
Rajamangala University of Technology Thanyaburi
USA
Clemson University
Juniata College, Huntingdon
University of Central Florida, Orlando