edited by Robert W. Roberts, Robert H. Nee
University of Chicago Press, 1970
Buku Teks
edited by Jan Fook
Allen & Unwin, 1996
Buku Teks
Farley, O. William, 1934-, author
Pearson Education, 2012
Buku Teks
DePoy, Elizabeth, author
Brooks/Cole-Thomson Learning, 2003
Buku Teks
Skidmore, Rex A. (Rex Austin), author
Prentice Hall International, 1991
Buku Teks