Lizah, R., 		Asari, S., & 		Alfiansyah, I.
(2021).
 Development Of Teaching Materials In Mathematics Lessons In Semester Ii In Class IV Students Of Elementary School.
<em>Journal Universitas Muhammadiyah Gresik Engineering, Social Science, And Health International Conference (UMGESHIC), 1</em>(2), 233-238.
doi:10.30587/umgeshic.v1i2.3385