Ningrum, S. A. U., and S. Rejeki. “Improving Students’ Self-Confidence and Problem-Solving Ability Through RME Approach With TTW Type Cooperative Learning Model Setting”. Numerical: Jurnal Matematika Dan Pendidikan Matematika, vol. 7, no. 1, Apr. 2023, pp. 145-56, doi:10.25217/numerical.v7i1.3093.