1. Institut Teknologi Sepuluh Nopember (ITS),Department of Technology Management,Surabaya,Indonesia
2. Carnegie Mellon University,Department of Engineering and Public Policy,Pittsburgh,PA,USA
3. Institut Teknologi Sepuluh Nopember (ITS),Department of Industrial and Systems Engineering,Surabaya,Indonesia
4. Carnegie Mellon University,Department of Mechanical Engineering,Pittsburgh,PA,USA