1. Thammasat University Research Unit in Industrial Statistics and Operational Research, Thammasat School of Engineering,Thammasat University, Thailand
2. Department of Materials Handling and Logistics Engineering, King Mongkut's University of Technology North Bangkok, Thailand
3. Faculty of Industrial Technology, Phranakorn Rajabhat University, Thailand
4. Department of Sciences and Methods for Engineering, University of Modena and Reggio Emilia, Italy