1. Universitas Qomaruddin,Department of Industrial Engineering,Gresik,Indonesia
2. Universitas Trunojoyo, Madura,Department of Industrial Engineering,Bangkalan,Indonesia
3. Institut Teknologi Bandung,Department of Industrial Engineering,Bandung,Indonesia
4. Universitas Gadjah Mada,Department of Mechanical and Industrial Engineering,Yogyakarta,Indonesia
5. University of Warwick,WMG,Coventry,United Kingdom