1. Department of Industrial Engineering, Cebu Technological University, Cebu City, Philippines
2. Center for Applied Mathematics and Operations Research, Cebu Technological University, Cebu City, Philippines
3. Engineering and Industrial Research Division, National Research Council of the Philippines, Taguig City, Philippines
4. Department of Mathematics and Physics, Visayas State University, Baybay City, Leyte, Philippines
5. Department of Tourism Management, Cebu Technological University, Cebu City, Philippines
6. Social Sciences Division, National Research Council of the Philippines, Taguig City, Philippines