Fajri N E, Ismira I, Hayati R. Development of Interactive Teaching Materials using The Flip Pdf Corporate Edition Application in Mathematics Learning in Grade IV of Elementary Schools. JES [Internet]. 2026 Jan. 5 [cited 2026 May 14];10(1):123-34. Available from: https://jes.ejournal.unri.ac.id/index.php/JES/article/view/1265