Valentine, V.E., Tuti Alawiyah, Irmawati Liliana Kusuma Dewi and Tri Nopriana 2024. Identifying the Mathematical Concept Understanding Ability of Junior High School Students in Learning Linear Function Material. International Journal of Contemporary Studies in Education (IJ-CSE). 3, 2 (Jul. 2024), 115–126. DOI:https://doi.org/10.56855/ijcse.v3i2.994.