Sage, 2003
Buku Referensi
Thomsett, Michael C.
[American Management Association;, ], 2005
eBooks
Charney, Cy.
[American Management Association, ], 2005
eBooks
Cummings, Joe
Jonely Planet, 1982
Buku Referensi
Robert Storey ... [and others]
Lonely Planet , 1992
Buku Referensi