Arbain, Putri, Budi Irwansyah, dan Srimuliati Srimuliati. 2026. “Analisis Kemampuan Spasial Subjek Kelas X Pada Materi Geometri”. Jumper: Journal of Educational Multidisciplinary Research 5 (2):315-41. https://doi.org/10.56921/jumper.v5i2.458.