SONIA, Devi Rezha; PURWANTO, Burhan Eko; MUNADI, Munadi. Pengembangan Modul Ajar Dengan Model Pembelajaran Problem Based Learning Berbantu Geogebra Materi Persamaan Garis Lurus pada Siswa Kelas VIII SMP Negeri 2 Bumijawa. Journal of Education Research, [S. l.], v. 5, n. 1, p. 417–425, 2024. DOI: 10.37985/jer.v5i1.839. Disponível em: https://jer.or.id/index.php/jer/article/view/839. Acesso em: 23 aug. 2025.