Shofa, N. et al. 2024. Application of Jigsaw Type Cooperative Learning Model to Improve Conceptual Knowledge and Problem Solving Ability of Senior High School Students. Hydrogen: Jurnal Kependidikan Kimia. 12, 6 (Dec. 2024), 1496–1511. DOI:https://doi.org/10.33394/hjkk.v12i6.13930.