ARDILA, A.; MARZAL, J.; SIBURIAN, J. The Development of Flipped Classroom Model Trigonometry Learning Tools improves Students’ Mathematical Communication Skills. Edumatica : Jurnal Pendidikan Matematika, [S. l.], v. 11, n. 03, p. 65-77, 2021. DOI: 10.22437/edumatica.v11i03.14497. Disponível em: https://online-journal.unja.ac.id/edumatica/article/view/14497. Acesso em: 3 jul. 2024.