Agger, Ben
Oxford University Press, 2013
Buku Teks
edited by Robert W. Roberts, Robert H. Nee
University of Chicago Press, 1970
Buku Teks
Shaw, Marvin E., author
McGraw-Hill, 1982
Buku Teks
edited by Peter J. Burke
Stanford University Press, 2006
Buku Teks
Templer, John A.
Massachusetts Institute Technology, 1994
Buku Teks