Hadi FR. Efektifitas Model Pbl Terintegrasi STEM Terhadap Kemampuan Berpikir Kritis Matematis Siswa Kelas V SD. jptam [Internet]. 2021 Oct. 13 [cited 2024 Dec. 28];5(3):6644-9. Available from: http://jptam.org/index.php/jptam/article/view/2005