Development of Student Worksheet (LKPD) Based on Project Based Learning to Improve Students’ Critical Thinking Skills in Integrated Thematic Learning in Elementary Schools. JLG [Internet]. 2024 Aug. 25 [cited 2026 Jun. 29];5(2):1-9. Available from: https://jpips.fkip.unila.ac.id/index.php/jlg/article/view/43