Rahayu, Asyla Dwi, et al. “Implementation of Playing Matching Geometric Shapes in Improving the Ability to Recognize Geometric Shapes in Children Aged 4-5 Years at Qalbin Salim Islamic Kindergarten”. KHIDMAH: Jurnal Pengabdian Kepada Masyarakat, vol. 5, no. 2, July 2025, pp. 117-26, doi:10.24252/khidmah.v5i2.59904.