Jaya Dwi Putra
Department of Mathematics Education, Universitas Riau Kepulauan, Indonesia
Department of Mathematics Education, Universitas Pendidikan Indonesia, Bandung, Indonesia
Didi Suryadi
Department of Mathematics Education, Universitas Pendidikan Indonesia, Bandung, Indonesia
Dadang Juandi
Department of Mathematics Education, Universitas Pendidikan Indonesia, Bandung, Indonesia