Orient Mercur-Verlag, 1958
Buku Teks
Canberra, Australia : Department of Foreign Affairs
Majalah, Jurnal, Buletin
Stewart, Douglas Alexander, 1913-, author
University of Queensland Press, 1971
Buku Teks
Stow, Randolph, 1935-2010, author
University of Queensland Press, 1974
Buku Teks
Lucas, Gavin, 1965-, author
Cambridge University Press, 2012
Buku Teks