| Wikidata property for an identifier | Q19847637 |
| Wikidata property for items about languages | Q20824104 |
| P1793 | format as a regular expression | \d{4} \d |
| P3254 | property proposal discussion | https://www.wikidata.org/wiki/Wikidata:Property_proposal/Archive/45#P2590 |
| P1896 | source website for the property | http://microdata.bps.go.id/mikrodata/index.php/catalog/SP |
| P10726 | class of non-item property value | BPS language code | Q33319096 |
| P17 | country | Indonesia | Q252 |
| P2378 | issued by | Statistics Indonesia | Q3449895 |
| P2302 | property constraint | format constraint | Q21502404 |
| distinct-values constraint | Q21502410 | ||
| single-value constraint | Q19474404 | ||
| item-requires-statement constraint | Q21503247 | ||
| allowed-entity-types constraint | Q52004125 | ||
| property scope constraint | Q53869507 |
| Q33319096 | BPS language code | Wikidata property | P1687 |
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