Pangaribuan, Rut K, Universitas HKBP Nommensen Pematangsiantar, Indonesia

• Vol 5, No 1 (2021): JUNE - Research in Mathematics Education
  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]
  Abstract  PDF