NAINGGOLAN, Elfrida. PENERAPAN PENDEKATAN CONCRETE PICTORIAL-ABSTRACT (CPA) UNTUK MENINGKATKAN SIKAP TANGGUNG JAWAB, KEMAMPUAN PENGUASAAN KONSEP, DAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA DI SDS XYZ JAKARTA [THE APPLICATION OF THE CONCRETE-PICTORIAL-ABSTRACT (CPA) APPROACH TO IMPROVE RESPONSIBILITY, CONCEPTUAL UNDERSTANDING, AND MATHEMATICAL PROBLEM SOLVING SKILLS AT SDS XYZ JAKARTA]. JOHME: Journal of Holistic Mathematics Education, [S. l.], v. 6, n. 1, p. 107–121, 2022. DOI: 10.19166/johme.v6i1.4527. Disponível em: http://ojs.uph.edu/index.php/JOHME/article/view/4527. Acesso em: 23 feb. 2025.