https://t.me/csc_kimyo 🏰Chemistry Science Club 👨🏻‍💻Kimyo online tahlil 🧑🏻‍🔬Ilmiy muhokamalarga asoslangan kanal 👨🏻‍🎓Repetitor: @Bey_009 📞Murojaat: (91) 979 09 39 ru