Hafni, F.; Fakhruddin , F.; Yennita , Y. Development of E-Module of Fluid Physics Based on Problem-Based Learning (PBL) to Improve Motivation and Learning Outcomes of Grade XI Students of SMAN 4 Bagan Sinembah. JES 2025, 9 (4), 1814-1830. https://doi.org/10.31258/jes.9.4.p.1814-1830.