Ikhsan, M., et al. “The Development of Geo-Math Application by Integrating Geo-Gebra Applets to Improve Students’ Spatial Ability”. Jurnal Ilmiah Peuradeun, vol. 12, no. 3, Sept. 2024, pp. 1129-54, https://doi.org/10.26811/peuradeun.v12i3.1492.