MENGEMBANGKAN BAHAN AJAR BERBANTUAN SOFTWARE GEOGEBRA PADA MATERI LINGKARAN MENGGUNAKAN TAHAPAN ADDIE. INDONESIAN GEOGEBRA JOURNAL, [S. l.], v. 1, n. 1, p. 8–21, 2024. Disponível em: https://www.journal.geogebra.id/index.php/IGJ/article/view/5. Acesso em: 21 oct. 2025.