Putri, L. I., Nurwidiyanto, N., & Rohmah, A. (2021). THE DEVELOPMENT OF FRACTION TEXTBOOK WITH THE ETHNOMATHEMATICS APPROACH FOR THIRD GRADE STUDENT OF MADRASAH IBTIDAIYAH. Al-Bidayah : Jurnal Pendidikan Dasar Islam, 12(2), 165–182. https://doi.org/10.14421/al-bidayah.v12i2.535