Peterson, Donald R.
Massachusetts Lexington Books, 1978
Buku Teks
Christie, David
UNSW Press, 1997
Buku Teks
Fox, John P., author
Macmillan, 1970
Buku Teks
JB. Lippincott , 1959
Buku Teks
Labarthe, Darwin R., author
Jones & Bartlett Publishers, 2008
Buku Teks