MALIYANA, Jamilatuna; RAHAYU, Puji. Validitas LKPD Berbasis Problem Based Learning (PBL) pada Materi Statistika Siswa Kelas VIII SMP. Tematik : Jurnal Konten Pendidikan Matematika, [S. l.], v. 1, n. 2, p. 59–67, 2023. DOI: 10.55210/tematik.v1i2.1188. Disponível em: https://ejournal.unzah.ac.id/index.php/jkpm/article/view/1188. Acesso em: 30 jul. 2025.