Singer, Peter
Farrar, Straus & Giroux, 1982
Buku Teks
Wilson, Edward O.
The Belknap Press, 1982
Buku Teks
Rosenberg, Alexander
John Hopkins University Press, 1980
Buku Teks
Itzkoff, Seymour W.
Peter Lang, 1991
Buku Teks
Hunt, James H.
McGraw-Hill, 1980
Buku Teks