Ata, Putri Fritami, Agung Rahmadani, and Farah Erika. “Implementation of the PBL-STEM Model to Improve Students’ Critical Thinking on Reaction Rate Material”. Hydrogen: Jurnal Kependidikan Kimia 11, no. 5 (October 2, 2023): 645–652. Accessed September 8, 2026. https://e-journal.undikma.ac.id/index.php/hydrogen/article/view/8609.