Kurnia Putri Sepdikasari Dirgantoro Department of Mathematics Education, Universitas Pendidikan Indonesia
Department of Mathematics Education, Universitas Pelita Harapan Indonesia
Yaya Sukjaya Kusumah Department of Mathematics Education, Universitas Pendidikan Indonesia Indonesia
Al Jupri Department of Mathematics Education, Universitas Pendidikan Indonesia Indonesia
Margaretha Madha Melissa International Education Development Program, Hiroshima University Japan