| ISO 639-3 | art-001 |
| pip | |
| ISO 639-3 Reference Names | art-289 | Pero |
| ISO 639-3 Print Names | art-290 | Pero |
| ISO 639-3 Inverted Names | art-291 | Pero |
| Ethnologue Primary Language Names | art-323 | Pero |
| Glottolog Languoid Names | art-326 | Pero |
| Glottocode | art-327 | pero1241 |
| Glottolog Primary Key | art-328 | 25573 |
| Ethnologue Language Names | art-330 | Filiya |
| Ethnologue Language Names | art-330 | Pero |
| Ethnologue Language Names | art-330 | Pipero |
| English | eng-000 | Pero |