Silabus kimia: https://sma.kemdikbud.go.id/data/files/silabus/3.%20Syllabus_ICHO%5B1%5D.pdf Soal osk kimia 2018 beserta jawaban: https://www.folderosn.com/2018/03/soal-osk-kimia-2018-dan-kunci-jawaban.html?m=1 Soal osn kimia 2021 https://id.scribd.com/document/527221162/Soal-Osn-Kimia-2021 Soal osk kimia 2019 https://id.scribd.com/document/434426066/Soal-OSK-Kimia-2019 Soal dan jawaban osn kimia 2023 https://id.scribd.com/document/655499537/SOAL-DAN-JAWABAN-OLIMPIADE-KIMIA-SMA-TAHUN-2023 Soal dan jawaban osnk kimia 2022 https://id.scribd.com/document/636826468/Soal-KSN-kimia-dan-pembahasan-tingkat-kab-2022 Prediksi soal osnk kimia 2024 https://id.scribd.com/document/715303025/SOAL-PREDIKSI-OSNK-KIMIA-2024-firmanfathul-com