PUTRA, H. D.; PUTRI, W. A. S.; FITRIANA, U.; ANDAYANI, F. Kemampuan Pemecahan Masalah Matematis dan Self-Confidence Siswa SMP. SJME (Supremum Journal of Mathematics Education), [S. l.], v. 2, n. 2, p. 60–70, 2018. DOI: 10.35706/sjme.v2i2.1313. Disponível em: https://journal.unsika.ac.id/index.php/supremum/article/view/1313. Acesso em: 10 may. 2024.