Halawati, H. dan Ranti, M.G. 2020. Improvement of ability of class VB students SDN Indrasari 2 Martapura to solve multiplying and dividing fraction use tiered drilling. Math Didactic: Jurnal Pendidikan Matematika. 6, 1 (Apr 2020), 65-74. DOI:https://doi.org/10.33654/math.v6i1.911.