Rubin, Louis D.
University of Washington Press, 1963
Buku Teks
O`Connor, Flannery, author
New American Library, 1965
Buku Teks
Clark, Thomas D.
Oxford University Press, 1961
Buku Teks
Jordan, Carl F, author
Springer, 2013
Buku Teks
A Mentor Book, 1991
Buku Teks