Munn, Norman L., author
Houghton-Mifflin, 1962
Buku Teks
Nevid, Jeffrey S., author
Wadsworth and Cengage Learning, 2013
Buku Teks
Hilgard, Ernest R. (Ernest Ropiequet), 1904-2001, author
Harcourt Brace Jovanovich, 1979
Buku Teks
Rathus, Spencer A., author
Belmont, CA, 2004
Buku Teks
The Asphalt Institute
Maryland: The Asphalt Institute, 1974
Buku Teks