Alarid, Leanne Fiftal, author
Wadsworth and Cengage Learning, 2013
Buku Teks
general editor, Kenneth B. Clark and Jeannette Hopkins
Harper and Row, 1969
Buku Teks
Atkinson, Rhonda, author
McGraw-Hill, 2012
Buku Teks
Porterfield, John D.
Voice American Forum Lecture, [date of publication not identified]
Buku Teks
Katz, Peter
McGraw-Hill, [1994, 1994]
Buku Teks