Professor of Applied Mathematics. Universidad de La Laguna

Department of Mathematics, Faculty of Science, King Mongkut's University of Technology …

National Yunlin University of Science and Technology, Taiwan

Professor of Mathematics, University of Chester

Professor of Mathematics, Berlin University of Applied Sciences and Technology, Germany

Department of Mathematics, Guizhou University

Professor, Department of Mathematics, University of South Africa

Cankaya University

Mentor Professor, Department of Mathematics, Bharathiar University, Coimbatore, India

Department of Applied Mathematics, University of Rajshahi, Bangladesh