Glicken, Morley D., author
Elsevier , 2009
Buku Teks
Ivey, Allen E., author
Allyn and Bacon, 1996
Buku Teks
Corey, Gerald, author
Cengage Learning, 2017
Buku Teks
Cottone, R. Rocco, author
Allyn & Bacon, 1992
Buku Teks
Raymond A. Levy, editor
[, Springer], 2012
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