1.
Wulanndari I. Validity of Problem Based Learning (PBL) Worksheets to Improve Learners’ Creative Thinking Skills on Renewable Energy Study Materials. ipf [Internet]. 2023 Oct. 1 [cited 2025 Jul. 6];12(3):57-6. Available from: https://ejournal.unesa.ac.id/index.php/inovasi-pendidikan-fisika/article/view/57136