Suparno Suparno (Alumni Departemen Matematika, Universitas Gadjah Mada, Indonesia, Indonesia)
Sri Wahyuni Jamal (Fakultas Ekonomi Bisnis dan Politik, Universitas Muhammadiyah Kalimantan Timur, Indonesia, Indonesia)
Riski Safitri (Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Yogyakarta, Indonesia, Indonesia)
Arif Fatahillah (Program Studi Pendidikan Matematika, Universitas Jember, Indonesia, Indonesia)
Vyke Triawilly Pradista (Program Studi Pendidikan Matematika, Universitas Jember, Indonesia, Indonesia)
Rafiantika Megahnia Prihandini (Program Studi Pendidikan Matematika, Universitas Jember, Indonesia, Indonesia)
Susi Setiawani (Program Studi Pendidikan Matematika, Universitas Jember, Indonesia, Indonesia)
Lioni Anka Monalisa (Program Studi Pendidikan Matematika, Universitas Jember, Indonesia, Indonesia)
Calvin Hanssen (Department of Mathematics, Universitas Tanjungpura, Indonesia)
Fransiskus Fran (Department of Mathematics, Universitas Tanjungpura)
Yundari Yundari (Department of Mathematics, Universitas Tanjungpura, Indonesia)
Nana Sumarna (Department of Primary School Teacher Education, Faculty of Teaching and Educational Sciences, Halu Oleo University, Indonesia)
Rusnawati Rusnawati (Study Program of Social Sciences, Faculty of Teacher Training and Educational Sciences, Halu Oleo University, Indonesia)
Ice Rahmawati (The Education Office of Kendari City, Southeast Sulawesi, Indonesia)
Nadia Aulia Jelita (Program Studi Statistika, Universitas Sebelas Maret, Surakarta, Indonesia)
Sri Sulistijowati Handajani (Program Studi Statistika, Universitas Sebelas Maret, Surakarta, Indonesia)
Irwan Susanto (Program Studi Statistika, Universitas Sebelas Maret, Surakarta, 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)