PANGARIBUAN, Firman; PANGARIBUAN, Rut K. PENGEMBANGAN ALAT PERAGA DARI LIMBAH PLASTIK UNTUK MATERI GEOMETRI BIDANG DATAR JENJANG SEKOLAH DASAR [CREATING TEACHING AID FROM PLASTIC WASTE ON PLANE GEOMETRY IN ELEMENTARY SCHOOL]. JOHME: Journal of Holistic Mathematics Education, [S. l.], v. 5, n. 1, p. 31–43, 2021. DOI: 10.19166/johme.v5i1.3528. Disponível em: https://ojs.uph.edu/index.php/JOHME/article/view/3528. Acesso em: 14 mar. 2025.