Lestari, D.A. , Basir, U.P.M. and Susilo, C.Z. 2020. IMPLEMENTATION OF OPEN-ENDED APPROACH TO MATHEMATICAL PROBLEM SOLVING IN CLASS V OF CEWENG JOMBANG ELEMENTARY SCHOOL. IJPSE Indonesian Journal of Primary Science Education. 1, 1 (Nov. 2020), 92–100. DOI:https://doi.org/10.33752/ijpse.v1i1.1104.