Malik , M.A. et al. 2026. Junior High School Students’ Misconceptions and Problem-Solving Strategies in Relations and Functions. Kognitif: Jurnal Riset HOTS Pendidikan Matematika. 6, 4 (Nov. 2026), 1828–1839. DOI:https://doi.org/10.51574/kognitif.v6i4.6073.