Aulia Masruro, Anisyah, et al. “Analisis Penerapan Problem Based Learning Dalam Kemampuan Berpikir Kritis Siswa Pada Pelajaran Matematika”. Education Journal : Journal Educational Research and Development, vol. 8, no. 1, Feb. 2024, pp. 26-33, doi:10.31537/ej.v8i1.1604.