SARAGIH, Sahat. PENGARUH PENDEKATAN PEMBELAJARAN DAN LOCUS OF CONTROL TERHADAP KEMAMPUAN PENALARAN MATEMATIKA SISWA. Jurnal Kependidikan: Penelitian Inovasi Pembelajaran, Yogyakarta, Indonesia, v. 41, n. 2, 2011. DOI: 10.21831/jk.v41i2.2217. Disponível em: https://journal.uny.ac.id/index.php/jk/article/view/2217. Acesso em: 26 aug. 2025.