Perangin Angin, L. M., & Sitorus, I. N. (2020). APPLICATION OF NUMBERS LINE MEDIA ON ROUND NUMBER MATERIALS TO IMPROVE MATHEMATICAL LEARNING OUTCOMES STUDENT CLASS VI SD N 105425 MALASORI. JURNAL HANDAYANI PGSD FIP UNIMED, 11(1), 88–94. https://doi.org/10.24114/jh.v11i1.19015