| ISO 639-3 | art-001 |
| soc | |
| ISO 639-3 Reference Names | art-289 | So (Democratic Republic of Congo) |
| ISO 639-3 Print Names | art-290 | So (Democratic Republic of Congo) |
| ISO 639-3 Inverted Names | art-291 | So (Democratic Republic of Congo) |
| Ethnologue Primary Language Names | art-323 | So |
| Glottolog Languoid Names | art-326 | So (Democratic Republic of Congo) |
| Glottocode | art-327 | sode1235 |
| Glottolog Primary Key | art-328 | 29669 |
| Ethnologue Language Names | art-330 | Eso |
| Ethnologue Language Names | art-330 | Gesogo |
| Ethnologue Language Names | art-330 | Heso |
| Ethnologue Language Names | art-330 | So |
| Ethnologue Language Names | art-330 | Soa |
| Ethnologue Language Names | art-330 | Soko |
| English | eng-000 | So |