Evi Latifatus Sirri, Nani Ratnaningsih, and Puji Lestari, “Is android-based learning media effective for exploring students’ spatial ability?”, J. Math Educ. Nusant. Wahana Publ. Karya Tulis Ilm. di Bid. Pendidik. Mat., vol. 7, no. 2, pp. 149–160, Nov. 2021, doi: 10.29407/jmen.v7i2.16527.