ARVIANTO, I. R. DEVELOPING LEARNING DESIGNS TO IMPROVE CREATIVE THINKING ABILITY IN THE EVENT OF THE UPCOMING INDUSTRIAL ERA 4.0. De Fermat : Jurnal Pendidikan Matematika, [S. l.], v. 2, n. 2, p. 93–102, 2020. DOI: 10.36277/defermat.v2i2.52. Disponível em: http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/52. Acesso em: 23 jun. 2021.