FADILAH, A. N.; SUTIRNA, S.; HAERUDIN, H. The effect of problem-based learning model assisted by Google Site on the students’ mathematical concept understanding ability. Union: Jurnal Ilmiah Pendidikan Matematika, [S. l.], v. 11, n. 2, p. 184–190, 2023. DOI: 10.30738/union.v11i2.13273. Disponível em: https://jurnal.ustjogja.ac.id/index.php/union/article/view/13273. Acesso em: 17 apr. 2024.