Putri, Sarmila Eka, and Nurfina Aznam. “Enhancing students’ Scientific Attitudes With a Problem-Based Learning Model Integrated Green Chemistry”. Jurnal Pendidikan Kimia 16, no. 3 (December 30, 2024): 244 – 250. Accessed July 6, 2025. https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/65173.