Henri Rianto (SMP Negeri 2 Panjalu, Jl. Raya Kawali-Panjalu, Ciamis, Indonesia)
Rusgianto Heri Santoso (Pendidikan Matematika, Universitas Negeri Yogyakarta, Indonesia)
Esti Ambar Nugraheni (Department of Mathematics Education, FKIP Universitas Muhammadiyah Prof. Dr. Hamka Jakarta,
Jalan Limau II Kebayoran Baru, Kota Jakarta Selatan 12130, Indonesia)
Sugiman Sugiman (Department of Mathematics Education, Universitas Negeri Yogyakarta, Indonesia)
Wasilatul Murtafiah (Department of Mathematics Education, Universitas PGRI Madiun, Madiun, Indonesia)
Anisa Yunitasari (Department of Mathematics Education, Universitas PGRI Madiun, Madiun, Indonesia)
Sardulo Gembong (Department of Mathematics Education, Universitas PGRI Madiun, Madiun, Indonesia)
Joel I. Alvarez (Department of Science and Technology, Nueva Ecija University, Philippines)
Faridah Hanim Yahya (Department of Educational Study, Universitas Pendidikan Sultan Idris, Malaysia)
Ellis Salsabila (Study Program of Mathematics Education, Universitas Negeri Jakarta, East Jakarta, Indonesia)
Mimi Nur Hajizah (Study Program of Mathematics Education, Universitas Negeri Jakarta, East Jakarta, Indonesia)