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), pp. 157-170. doi: 10.24036/jep/vol7-iss2/757.