Wira Kusuma, A. et al. 2026. Analisis Kesulitan Siswa pada Materi Fungsi Komposisi dan Invers Kelas XI SMK Muhammadiyah 3 Pekanbaru. Journal of Health Education Law Information and Humanities. 3, 2 (Aug. 2026), 31–35. DOI:https://doi.org/10.57235/helium.v3i2.8386.