Astalini A, Darmaji D, Kurniawan DA, Citra YD. Investigating the Need for the Development of Mathematics Physics E-Modules for Students. GJIT [Internet]. 2023 Nov. 23 [cited 2024 May 16];13(2):134-43. Available from: https://un-pub.eu/ojs/index.php/gjit/article/view/9125