Onoshakpokaiye E Odiri |||| Institute of Education, Abraka, Nigeria

Othmane Fahim |||| Institut National de Statistique et d'Economie Appliquée, Maroko

Tang Minh Dung |||| Ho Chi Minh City University of Education, Vietnam

María Cecilia Manzione Patrón |||| Instituto de Profesores Artigas, Uruguay

Oluwole Sikiru Banjo |||| Tai Solarin University of Education, Nigeria

Dussadee Somjaiwang |||| Kanchanaburi Rajabhat University, Thailand

José Alberto Del Puerto-Flores |||| Universidad Panamericana, Venezuela

Jehad Alshwaikh ||||Birzeit University, Palestine

Isaias Miranda |||| Instituto Politécnico Nacional, Mexico

Erlina Ronda |||| University of the Philippines Diliman, Philippines

Luz Valoyes-Chávez |||| Universidad Católica de Temuco, Chile

Jill Adler |||| University of the Witwatersrand, South Africa

Jayasree Subramanian |||| SRM University-AP, India

Karin Brodie ||||University of the Witwatersrand, South Africa

Rukiye Didem Taylan |||| MEF University, Turkey

Ulises Xolocotzin Eligio |||| Instituto Politécnico Nacional, Mexico

Cheng Meng Chew ||||  Universiti Sains Malaysia, Malaysia

Hamzah Upu |||| Universitas Negeri Makassar, Indonesia

Ulumul Umah |||| Universitas Pesantren Tinggi Darul Ulum, Jawa Timur, Indonesia

Julia Noviani |||| Institut Agama Islam Negeri Takengon, Indonesia

Asmaul Husnah Amri |||| Universitas Pancasakti Makassar, Indonesia

Tri Hariyati Nur Indah Sari |||| University of Balikpapan, Indonesia

Jackson Pasini Mairing |||| Pendidikan Matematika, Universitas Palangka Raya, Indonesia

Irianto Aras |||| Pendidikan Matematika, Universitas Borneo Tarakan, Indonesia

Hasnawati |||| Pendidikan Matematika, Universitas Halu Oleo, Indonesia