Hendrix, Jerry A, author
Wadsworth and Cengage Learning, 2007
Buku Teks
Beard, Mike, author
Kogan Page, 2001
Buku Teks
Haywood, Roger, 1939-, author
McGraw-Hill , 1984
Buku Teks
Jefkins, Frank William, author
Heinemann Asia, 1992
Buku Teks
Mogel, Leonard
Collier Books Macmillan Publishing, 1993
Buku Teks