| 日本語 | jpn-000 |
| 俗学 | |
| Deutsch | deu-000 | Populärwissenschaft |
| English | eng-000 | general education |
| English | eng-000 | popular music |
| English | eng-000 | popular science |
| suomi | fin-000 | populaaritiede |
| にほんご | jpn-002 | ぞくがく |
| нихонго | jpn-153 | дзокугаку |
| русский | rus-000 | знания |
| svenska | swe-000 | populärvetenskap |