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"Geschichte (100 Jahre)". Official Website of the National Spiritual Assembly of the Baháʼís of Germany. National Spiritual Assembly of the Baháʼís of Germany. Archived from the original on 26 June 2008. Retrieved 2008-07-16.
Faridi, Ali (1998). "Baháʼí community in Hannover". Religions in Hannover. WCRP/Hannover. Archived from the original on 19 June 2008. Retrieved 2008-07-17.
"Verschiedene Gemeinschaften / neuere religiöse Bewegungen". Religionen in Deutschland: Mitgliederzahlen (Membership of religions in Germany). REMID - the "Religious Studies Media and Information Service" in Germany. December 2012. Archived from the original on 23 January 2015.
"Most Baha'i Nations (2005)". QuickLists > Compare Nations > Religions >. The Association of Religion Data Archives. 2005. Archived from the original on 2016-01-23. Retrieved 2012-09-16.
"Historie". Official Website of the National Spiritual Assembly of the Baháʼís of Germany. National Spiritual Assembly of the Baháʼís of Germany. Archived from the original on 2008-07-04. Retrieved 2008-07-16.
"The Baha'i Esperanto League". The Baha'i Faith and Esperanto. Bahaa Esperanto-Ligo. Archived from the original on 19 June 2008. Retrieved 2008-07-16.
"Verschiedene Gemeinschaften / neuere religiöse Bewegungen". Religionen in Deutschland: Mitgliederzahlen (Membership of religions in Germany). REMID - the "Religious Studies Media and Information Service" in Germany. 2007–2008. Archived from the original on 25 June 2008. Retrieved 2008-07-17.
"Most Baha'i Nations (2005)". QuickLists > Compare Nations > Religions >. The Association of Religion Data Archives. 2005. Archived from the original on 2016-01-23. Retrieved 2009-07-04.