TINGKATAN BERPIKIR KREATIF TARUNA NAUTIKA DALAM PROSES ABSTRAKSI GEOMETRI MELALUI GEOGEBRA. Riemann: Research of Mathematics and Mathematics Education, [S. l.], v. 6, n. 1, p. 39–52, 2024. DOI: 10.38114/7yj73314. Disponível em: http://journal.sanagustin.ac.id/index.php/reimann/article/view/16.. Acesso em: 18 apr. 2026.