Pangaribuan F, Pangaribuan RK. 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 [Internet]. 2021 Jun. 29 [cited 2025 Mar. 14];5(1):31-43. Available from: https://ojs.uph.edu/index.php/JOHME/article/view/3528