Jatisunda, Mohamad Gilar, Didi Suryadi, and Sufyani Prabawanto. 2024. “Enhancing Mathematical Problem-Solving Ability through Project-Based Learning: A Study of Vocational High School Student”. Jurnal Elemen 10 (3):711-27. https://doi.org/10.29408/jel.v10i3.26244.