P. Singh

Sakarya University

University of Alberta

UNL - New University of Lisbon

Queen Mary, University of London

University of Ottawa | Université d'Ottawa

Southern Luzon State University

National University, San Diego

Graduate Center of the City University of New York

Universidade Federal de Santa Catarina - UFSC (Federal University of Santa Catarina)

Università degli Studi di Milano - State University of Milan (Italy)