edited by Grace J. Kelleher
John Wiley & Sons, 1970
Buku Teks
Weimer, David L.
Pearson Prentice Hall, 1989
Buku Teks
Weimer, David L.
Routledge, 2014
Buku Teks
Weimer, David L.
Prentice-Hall, 1992
Buku Teks
Starling, Grover
Dorsey Press, 1979
Buku Teks