Rahayu, Anisa, Panca Purwati, and Ismi Trisnawati. “Improving Numeracy Skills Through the Application of Problem Based Learning Models Assisted by Differentiated Concrete Media in Low Class Students”. Journal of Primary Education 11, no. 3 (September 30, 2022): 388-398. Accessed November 24, 2024. https://journal.unnes.ac.id/sju/jpe/article/view/69976.