Wahyuni, T., S. Syutaridho, and A. Efriani. “The Effect of Implementing the PBL Model on Students’ Problem-Solving Abilities in Middle School”. Edumatica : Jurnal Pendidikan Matematika, vol. 13, no. 03, Dec. 2023, pp. 247-5, doi:10.22437/edumatica.v13i03.28953.