| español | spa-000 |
| ersu | |
| ISO 639-3 | art-001 | ers |
| Glottolog Languoid Names | art-326 | Ersu |
| Glottocode | art-327 | ersu1241 |
| Glottolog Primary Key | art-328 | 27830 |
| UNESCO Atlas of the World’s Languages in Danger ID | art-329 | 2432 |
| English | eng-000 | Ersu |
| français | fra-000 | ersu |