Permana EP, Sari YEP. Development of Pop Up Book Media Material Distinguishing Characteristics of Healthy and Unfit Environments Class III Students Elementary School. International j.of Elementary Education [Internet]. 2018 Apr. 30 [cited 2024 May 6];2(1). Available from: https://ejournal.undiksha.ac.id/index.php/IJEE/article/view/13127