Ismunandar, Denni, and Luthfiyati Nurafifah. 2019. “Pengaruh Penggunaan Buku Ajar Matematika Berbantuan Geogebra Terhadap Karakter Kreatif Siswa”. PRISMA, Prosiding Seminar Nasional Matematika 2 (February), 526-32. https://journal.unnes.ac.id/sju/prisma/article/view/29045.