Aprilliani, Dewi, Wasitohadi ., and Theresia Sri Rahayu. 2019. “Upaya Peningkatan Keaktifan Dan Hasil Belajar Matematika Menggunakan Model Pembelajaran TSTS Berbantuan Media Tangram”. Indonesian Journal of Educational Research and Review 2 (1). https://doi.org/10.23887/ijerr.v2i1.17297.