Gaya APA
Fitzsimmons, J, A., Fitzsimmons, M, J. (2008).
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New York:
Mc Graw-Hill.
Gaya MLA
Fitzsimmons, James, A.., Fitzsimmons, Mona, J..
"Service management : operations, strategy, information technology".
6th ed.
New York:
Mc Graw-Hill,
2008.
BUKU.