Institute, Boumerdes Algeria.

University of Vienna, Vienna, Austria

University Paris-Est Créteil, France

The Hong Kong Polytechnic University, Hong Kong

University of Malaya, Malaysia

Portland State University & ERS Co., USA

University of Minho, Portugal

Mahatma Gandhi University, India

Nanyang Technological University, Singapore

University of UHA , France

Kuala Lumpur, Malaysia

Hong Kong University of Science and Technology, Hong Kong

Georgian Technical University, Georgia