@article{Retnowati_Dwidayati_Dewi_2019, title={The Implementation of CPS Learning Assisted with Problem Cards on The Ability to Solve Story Problems}, volume={8}, url={https://journal.unnes.ac.id/sju/jpe/article/view/33685}, number={6}, journal={Journal of Primary Education}, author={Retnowati, Fitri and Dwidayati, Nur Karomah and Dewi, Nuriana Rachmani}, year={2019}, month={Aug.}, pages={351-357}