[1]
Putra, H.F.K. and Sari, R.L.P. 2026. Development of Chemistry Tetrahedron Mahaffy Based on Scratch Platform as Learning Media on Hydrocarbon Topics to Strengthen Systems Thinking Skills of High School Students. Hydrogen: Jurnal Kependidikan Kimia. 14, 4 (Aug. 2026). DOI:https://doi.org/10.33394/hjkk.v14i4.21943.