Dewi, P., Hairida, H., Rasmawan, R., Masriani, M., & Junanto, T. (2023). The Analysis of Chemistry Test Item Difficulty on XI MIPA Year-End Assessment at SMAN 8 Pontianak. Hydrogen: Jurnal Kependidikan Kimia, 11(5), 676–685. https://doi.org/10.33394/hjkk.v11i5.8881