Developing ethic game (Ethnomathematics Game): The instructional media of culture mathematics with tringo by Ki Hadjar Dewantara SF Az-Zahroh, ZZA Thaariq, E Surahman, CM Widyasari, MS Qolbi, ... Jurnal Pendidikan Dan Pembelajaran 26 (2), 43-50, 2019 | 14 | 2019 |