Damaiyanti A, Silitonga HTM, Hidayatullah MMS. Development of Problem Solving Based E-Modules Assisted by Flipbook in Physics Learning for Middle School Students. j. paedagog. penelit. pengemb. pendidik. [Internet]. 2025 Jan. 21 [cited 2025 Aug. 15];12(1):196-207. Available from: https://e-journal3.undikma.ac.id/index.php/pedagogy/article/view/13751