Khoa Hóa
Thông báo và quyết đinh:
https://drive.google.com/drive/folders/1rDRc-P957Jn5Ch3lpklK6F3WVNOo4Rv7
https://drive.google.com/drive/folders/1vwls9MYNcb1xK89-anjFo-geub8zlWGK