Satiti, W. “Pola Pikir Relatif (Relative-Thinking) Siswa Kelas 5 Dalam Menyelesaikan Masalah Kontekstual”. JoEMS (Journal of Education and Management Studies), Vol. 2, no. 2, Apr. 2019, pp. 61-70, http://ojs.unwaha.ac.id/index.php/joems/article/view/114.