1. Center for Innovative Engineering and School of Business, Universiti Teknolog iBrunei, Mukim Gadong A, Bandar Seri Begawan BE1410, Brunei
2. Center for Research Collaboration of Graph Theory and Combinatorics, UTB (University of Technology Brunei, Brunei Darussalam), Brunei—BRIN (National Research and Innovation Agency, Indonesia), Indonesia—ITB (Institute of Technology Bandung, Indonesia), Indonesia—UI (University of Indonesia, Indonesia), Indonesia—THU (Tunghai University, Taiwan), Taiwan, National Research and Innovation Agency, Jakarta 10340, Indonesia
3. Computer Science, Tunghai University, Taichung City 407224, Taiwan