| Tier | Texts |
|---|---|
| S | Economics, DTG, Gooning period(study) |
| A | Health, PAD, DVC, Music, Japanese, Barista/Food tech |
| B | Statistics, History, media, Photography, Chinese, Chemistry, Carpentry , Automotive Engineering |
| C | Business, Englis, German, Biology, Accounting |
| D | Physics, Calc/Algebra, school |
