Mawarnis, Elvy Rahmi, Ilham Akbar, and Mimi Herman. “The Analysis of Science Process Skills (SPS) of 11th Grade Science Students”. Hydrogen: Jurnal Kependidikan Kimia 11, no. 5 (October 2, 2023): 632–644. Accessed August 16, 2025. https://e-journal3.undikma.ac.id/index.php/hydrogen/article/view/8923.