YUNIATI, Katrien Rohmartiningsiwi. PENINGKATAN KEMAMPUAN MENGHITUNG OPERASI HITUNG CAMPURAN MELALUI MODEL PEMBELAJARAN OPEN ENDED PADA SISWA KELAS IV SDI ABABIL SUKODONO SIDOARJO. Journal Of Islamic Elementary School (JIES), [S. l.], v. 2, n. 2, p. 44–54, 2017. DOI: 10.15642/jies.v2i2.1326. Disponível em: https://jurnalftk.uinsa.ac.id/index.php/jies/article/view/1326. Acesso em: 26 feb. 2026.