Abdel Salhi, Department of Mathematical Sciences, University of Essex, United Kingdom 

Liong Choong Yeun, School of Mathematical Sciences, Universiti Kebangsaan Malaysia, Malaysia

Dwi Juniati, Matematika, Universitas Negeri Surabaya, Indonesia 

Suyono Suyono, Statistika, Universitas Negeri Jakarta, Indonesia

Siti Fatimah, Matematika, Universitas Pendidikan Indonesia, Indonesia

Awi Dassa, Matematika, Universitas Negeri Makasar, Indonesia

Sugiyarto Sugiyarto, Matematika, Universitas Ahmad Dahlan, Indonesia 

Tutut Herawan, Department of Information Systems, University of Malaya, Indonesia

Sumardi Sumardi, LPMP Yogyakarta, Indonesia