Bromley, H. Myron, author
Government of Netherlands, 1961
Buku Teks
Paul de Lacy, editor
Cambridge University Press, 2011
Buku Teks
Rusdi Noor Rosa, author
Rajawali Pers, 2021
Buku Teks
John M. Anderson, Charles Jones editors
North-Holland , 1974
Buku Teks
Trask, R.L., author
Routledge, 1996
Buku Referensi