Klafkowski, Alfons
Ponzan: Polish Western Affairs, 1963
Buku Teks
Zulkifli, author
2012
UI - Tesis Open
Laski, Harold J., author
London George Allen & Unwin 1935
Buku Teks
Artikel Jurnal
Erick Mario, author
Fakultas Hukum Universitas Indonesia, 2103
UI - Tesis Membership