RAHMAN, Muliadi; RAMDANI, Agus; JAMALUDDIN, Jamaluddin. The Validity of Science Learning Devices Based on the 7E Learning Cycle Model to Improve Concept Mastery of Junior High School Students. Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, [S. l.], v. 9, n. 1, p. 108–113, 2021. DOI: 10.33394/j-ps.v9i1.3976. Disponível em: https://e-journal3.undikma.ac.id/index.php/prismasains/article/view/3976. Acesso em: 16 aug. 2025.