Alia, H. et al. 2026. Integrated Non-Digital Media Innovation ‘Space Capsule’ to Train Spatial Visualization Skills in Solid Geometry for Students. Mosharafa: Jurnal Pendidikan Matematika. 15, 1 (Jan. 2026), 311–323. DOI:https://doi.org/10.31980/mosharafa.v15i1.3551.