Johnston, George, 1912-1970, author
Collins, 1966
Buku Teks
Chesson, Keith, author
Dent, 1988
Buku Teks
Lindsay, Michael
Melbourne University Press, 955
Buku Teks
Lindsay, James F.
Matrix Publishers, Inc., 1978
Buku Teks
Elsevier, 2006
Buku Referensi