Foster, Nigel G.
German law & legal system
Blakcstone Press, 1993
 Buku Teks
Fisher, Howard D.
The German legal system and legal language
Cavendish Publishing Limited, 1999
 Buku Teks
Dobrovie-Sorin, Carmen
Redefining indefinites
Springer, 2012
 eBooks
Ahmad Fadlan Awriya
Redefinisi sistem teologi oleh arsitektur sebagai bentuk keyakinan publik = Redefining theology system by architecture as a form of public faith
Fakultas Teknik Universitas Indonesia, 2019
 UI - Tugas Akhir
McKeane, Alasdair
German
Longman, 1994
 Buku Teks SO