edited by P.W.D. Matthews and G.W. Ford
Sun Books, 1968
Buku Teks
Arndt, H. W. (Heinz Wolfgang), 1915-2002, author
F.W. Cheshire , 1968
Buku Teks
The Monthly Record,
Majalah, Jurnal, Buletin
Jasa Marga , 1993
Buku Teks
Hunter, Alex, author
Melbourne University Press, 1963
Buku Teks