Evi Latifatus Sirri, et al. “Is Android-Based Learning Media Effective for Exploring students’ Spatial Ability?”. Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah Di Bidang Pendidikan Matematika, vol. 7, no. 2, Nov. 2021, pp. 149-60, https://doi.org/10.29407/jmen.v7i2.16527.