Pramudiani, Puri dan Oktafiani, Adinda F. dan Aziz, Tian Abdul dan Purnomo, Yoppy Wahyu  (2017) Enhancing Conceptual Knowledge about Shape through Realistic Mathematics Education.  Jurnal Inovasi Pendidikan Dasar, 3 (1).  pp. 31-38.  ISSN 2477-3581