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Safitri, A., Chotimah, H., Hudha, A. and Rahardjanto, A. 2023. Application of Problem-Based Learning to Improve Problem Solving Skills and Creative Thinking Skills of Class XI Students. JURNAL EKSAKTA PENDIDIKAN (JEP). 7, 2 (Nov. 2023), 157-170. DOI:https://doi.org/10.24036/jep/vol7-iss2/757.