| File | Description | File size | Created | Last modified |
|---|---|---|---|---|
 TKB TH 18HCB-HK4.pdf | 295 kB | 16-06-2020 | 16-06-2020 | |
| TKB thuc hanh 19HCB-HK2.pdf | 301 kB | 16-06-2020 | 16-06-2020 |
| File | Description | File size | Created | Last modified |
|---|---|---|---|---|
| TKB TH 18HCB-HK4.pdf | 295 kB | 16-06-2020 | 16-06-2020 | |
| TKB thuc hanh 19HCB-HK2.pdf | 301 kB | 16-06-2020 | 16-06-2020 |