Landy, Frank J.
The Dorsey Press, 1980
Buku Teks SO
edited by Peter Warr
Panguin Books, 1978
Buku Teks SO
Bagozzi, Richard P.
Open University Press, 2003
Buku Teks SO
Gross, Richard D.
Pustaka Pelajar , 2013
Buku Teks SO
Alan Lewis
Cambridge University Press, 2018
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