Choiroh, Maslachatul. “The Effect of Tangram Media on the Learning Outcomes of Class V Mathematics Subjects in Elementary Schools: Pengaruh Media Tangram Terhadap Hasil Belajar Siswa Kelas V Mata Pelajaran Matematika Di Sekolah Dasar”. Madrosatuna: Journal of Islamic Elementary School, vol. 2, no. 1, Apr. 2018, pp. 05-12, doi:10.21070/madrosatuna.v2i1.1959.