Octafianellis, Dissa Feby, Sudarmin Sudarmin, Nanik Wijayanti, and Helina Panca. 2021. “Analysis of student’s Critical Thinking Skills and Creativity After Problem-Based Learning With STEM Integration”. Journal of Science Education Research 5 (1):31-37. https://doi.org/10.21831/jser.v5i1.41750.