Barumbun, Mardyanto, Universitas Borneo Tarakan, Indonesia

• Vol 11, No 1 (2022) - Articles
  ROLE OF SCAFFOLDING FOR REFLECTIVE THINKING ON THE MATHEMATICAL PROBLEM SOLVING
  Abstract  PDF
• Vol 12, No 3 (2023) - Articles
  COVID-19 SCHOOL CLOSURES IMPACTS ON PRIMARY SCHOOL STUDENTS MATHEMATICS COMPETENCE
  Abstract  PDF