- Marco Tregua, Università degli Studi di Napoli “Federico II”, Italy
- Ines JGUIRIM, IRENAV, France
- Mohd Fairuz Shiratuddin, Murdoch University, Australia
- Ameenulla J Ali, Queen’s University of Belfast, United Kingdom
- José Nazaereno Gonçalves Ferreira, Sergipe Federal Institute of Education, Brazil
- Jin Wang, Atkins North America, Inc., USA
- Paul Pavitra, Institute of Public Health and Clinical Nutrition,University of Eastern Finland., Finland
- Karina Cecilia Arredondo Soto, UABC, Autonomous University of Baja California, Mexico
- Dustin Besette, National Graduate School of Quality Management, USA
- Eduard V. Musafirov, Yanka Kupala State University of Grodno, Belarus
- Marta Žambochová, Univerzity J. E. Purkyně v Ústí nad Labem, Czech Republic
- Michail Kalogiannakis, University of Crete, Faculty of Education, Greece
- Mirosława Szewczyk, Opole University of Technology, Poland
- Narcisa Schwarz, Western University ‘Vasile Goldis’ of Arad, Romania
- Alessandro Silvestri, University of Cassino and Southern Lazio, Italy
- Katarzyna Hys, Opole University of Technology, Poland
- Olga Yakushina, Dubna International University, Russia
- Yaqoob Muhammad Mateen, COMSATS, Institute of Information Technology, Islamabad, Pakistan
- Oana Rusu, Alexandru Ioan Cuza University of Iasi, Romania
- Balázs Kotosz, University of Szeged, Hungary
- Andrea Székely, University of Szeged, Hungary
- Francisco Javier Blanco Encomienda, University of Granada, Spain
- Marcin Komańda, University of Economics in Katowice, Poland
- Rafal Parvi, Opole School of Banking Faculty of Management, Poland
- Agnieszka Tłuczak, Opole University, Poland
- Himanshu Chaurasiya, Amity School of Engineering & Technology, India
- Iwona Łapuńka, Opole University of Technology, Poland
- Janusz Nesterak, Cracow University of Economics, Poland
- Hadi Attaran, University of Economic Science, Iran
- Angelo Robert Nichola (J) Molson, Ministry of Interior Affairs, Civil Engineering, Greece
- Francesco Bifulco, Università degli Studi di Napoli “Federico II”, Italy
- Iwona Pisz, Opole University, Poland
- Daniel Markovič, Catholic University in Ruzomberok, Slovakia
