Kitley, Philip
Darling Downs Institute Press, 1986
Buku Referensi
Newmeyer, Sarah
New American Library , 1955
Buku Teks
Arnason, H. Harvard
Thames & Hudson, 1998
Buku Referensi
Archer, WG
London George Allen & Unwin ltd [1959]
Buku Teks
RB 769.952 M 180
Tokyo Kodansha International 1967
Buku Referensi