1. Independent researcher, Istanbul, Turkey
2. Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
3. Faculty of Arts and Social Sciences, Nile University of Nigeria, Abuja FCT, 900001 Nigeria
4. Department of Construction Management and Real Estate, Vilnius Gediminas Technical University, Saulėtekio al. 11, 10223 Vilnius, Lithuania