WALUYO, E. Development of problem based learning model integrated TPACK to improve problem solving ability. Union: Jurnal Ilmiah Pendidikan Matematika, [S. l.], v. 11, n. 2, p. 226–233, 2023. DOI: 10.30738/union.v11i2.14277. Disponível em: https://jurnal.ustjogja.ac.id/index.php/union/article/view/14277. Acesso em: 20 apr. 2024.