NIRA, N.; MARTA, R. A.; NOVIYANTI, M. Pengembangan Lembar Kerja Peserta Didik Berbasis Problem Based Learning pada Mata Pelajaran Matematika di Sekolah Dasar. Journal of Education Research, [S. l.], v. 5, n. 4, p. 5137–5145, 2024. DOI: 10.37985/jer.v5i4.1591. Disponível em: https://jer.or.id/index.php/jer/article/view/1591. Acesso em: 2 jul. 2025.