# security systems service activities
**Wikidata**: [Q112122799](https://www.wikidata.org/wiki/Q112122799)  
**Source**: https://4ort.xyz/entity/security-systems-service-activities-q112122799


## References

1. Statistical Classification of Economic Activities in the European Community, Rev. 2 (2008)
2. Nomenclature d'activités française, rév. 2