1. Universitas Negeri Malang,Dept. of Educational Administration,Malang,Indonesia
2. Hasanuddin University,Dept. of Industrial Engineering,Makassar,Indonesia
3. National Tsing Hua University,Dept. of Industrial Engineering and Engineering Management,Hsinchu,Taiwan
4. National Tsing Hua University,Dept. of Power Mechanical Engineering,Hsinchu,Taiwan
5. National Tsing Hua University,Dept. of Taipei School of Economics and Political Science,Hsinchu,Taiwan
6. SMA Islam Sabilurrosyad Malang,Dept. of Science,Malang,Indonesia