Rizki Handayani (Department of Mathematics Education, Universitas Negeri Medan, Indonesia, Indonesia)
Nurhasanah Siregar (Department of Mathematics Education, Universitas Negeri Medan, Medan, Indonesia)
Erlinawaty Simanjuntak (Department of Mathematics Education, Universitas Negeri Medan, Medan, Indonesia)
Yulita Molliq (Department of Mathematics Education, Universitas Negeri Medan, Medan, Indonesia)
Gity Wulang Mandini (Program Studi Pendidikan Matematika, Program Pascasarjana Universitas Negeri Yogyakarta, Indonesia)
Hartono Hartono (Program Studi Pendidikan Matematika, Program Pascasarjana Universitas Negeri Yogyakarta, Indonesia)