LUBIS, C. M.; SURYA, E. ANALISIS KEEFEKTIFAN BELAJAR MATEMATIKA MELALUI PENDEKATAN STOP THINK DO PADA SISWA MTs. BUDI AGUNG. Union: Jurnal Ilmiah Pendidikan Matematika, [S. l.], v. 4, n. 2, 2016. DOI: 10.30738/.v4i2.445. Disponível em: https://jurnal.ustjogja.ac.id/index.php/union/article/view/445. Acesso em: 6 dec. 2023.