Cox, C. Barry, author
John Wiley & Sons, 2010
Buku Teks
Nybakken, James W. (James Willard), author
Benjamin Cummings, 2001
Buku Teks
Nybakken, James W. (James Willard), author
Harper Collins, 1993
Buku Teks
Hugget, Richard John
Routledge, 1995
Buku Teks
Huggett, Richard John
Routledge , 1995
Buku Teks