Weisz, John R., author
Cambridge University Press, 2004
Buku Teks
Gardner, Richard A.
Jason Aronson, 1993
Buku Teks
Guetzkow, Harold, author
Prentice-Hall, 1972
Buku Teks
Silberman, Melvin L., author
Pfeffer, 2006
Buku Teks
Freddi, Alessandro, author
Springer Cham, 2019
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