Fajri, Hidayah Nurul, Rahmah Johar, and M Ikhsan. 2016. “Peningkatan Kemampuan Spasial Dan Self-Efficacy Siswa Melalui Model Discovery Learning Berbasis Multimedia”. Beta: Jurnal Tadris Matematika 9 (2):180-96. https://doi.org/10.20414/betajtm.v9i2.14.