edited by Gian-Vittorio Caprara and Guus L. Van Heck
Harvester Wheatsheaf, 1992
Buku Teks
Larsen, Randy J., author
McGraw-Hill, 2018
Buku Teks
Larsen, Randy J., author
McGraw-Hill, 2005
Buku Teks
edited by Harry T. Reis and Charles M. Judd
Cambridge University Press, 2000
Buku Teks
Hall, Calvin S. (Calvin Springer), 1909-1985, author
John Wiley & Sons, 1997
Buku Teks