Addisson Salazar, Polytechnic University of Valencia, Spain

Antonio Abreu, Polytechnic University of Lisbon, Portugal

Francesco Zirilli , Sapienza Universita Roma , Italy

Ghani Albaali,Princess Sumaya University for Technology, Jordan

Loc Nguyen, Loc Nguyen's Academic Network, Vietnam

Lucian Lupu-Dima, University of Petrosani, Romania

Michail Kalogiannakis, University of Thessaly, Greece

Mirza Mujtaba Baig, University of the Cumberlands,USA

Pellumb Kllogjeri, GeoGebra Institute of Albania, Albania

Sachin Kumar, Galgotias College of Engineering and Technology, India

Seppo Sirkemaa, Turku School of Economics at the University of Turku, Pori Unit

Wei-Chiang Hong, Harbin Engineering University, China