KONSEP DASAR IPA DI SD. Universitas Nusantara PGRI Kediri, [S. l.], p. 1–214, 2023. DOI: 10.29407/punp.vi.60. Disponível em: https://penerbit.unpkediri.ac.id/index.php/unp/article/view/60. Acesso em: 27 feb. 2026.