Moore, Brian C. J.
Academic Press, 2003
Buku Teks
Toohey, Brian
William Heinemann Australia, 1989
Buku Teks
Cambridge University Press, 2007
eBooks
Charters, Ann, author
Bedford/St. Martin's, 1999
Buku Teks
Bouman, P. J. (Pieter Jan)
McGraw-Hill , 1954
Buku Teks