Hanifa D, Cahyono E, Haryani S. Development of a Digital Module for Classification of Materials and Its Changes Topic to Improve the Multi-Representation Ability of Junior High School Students. JISE [Internet]. 6Apr.2023 [cited 30Jun.2024];12(1):8-8. Available from: http://journal.unnes.ac.id/sju/jise/article/view/60005