Wahyuni, T., Syutaridho, S. and Efriani, A. (2023) “The Effect of Implementing the PBL Model on Students’ Problem-Solving Abilities in Middle School”, Edumatica : Jurnal Pendidikan Matematika, 13(3), pp. 247-257. doi: 10.22437/edumatica.v13i03.28953.