Περαιτέρω πηγές
- European Commission (2020). Protection of Places of Worship. Retrieved from: https://ec.europa.eu/newsroom/pps/items/696367/en.
- Generaldirektion Migration und Inneres (2021). EU Quick Guide to support the protection of Places of Worship. Retrieved from: https://ec.europa.eu/home-affairs/whats-new/publications/eu-quick-guide-support-protection-places-worship_de.
- Ratliff, Paula L. (2015). A Security Survey for Houses of Worship. A Supplemental Design Instrument for Crime Prevention for Houses of Worship. Retrieved from: https://www.asisonline.org/globalassets/security-management/current-issues/2020/11/security-management-houses-of-worship-survey-paula-ratliff-.pdf.
- House of Worship Committee. Recommende best practices for Securing House of Worship around the World for people of all faiths. Retrieved from: https://www.asisonline.org/globalassets/get-involved/councils/documents/best-practices-securing-houses-of-worship.pdf.