Elliot, James
Tourism
Routledge, 1997
 Buku Teks
Tourism
Longman, 1999
 Buku Teks
Nature tourism : managing for the environment
edited by Tensie Whelan; foreword by Peter A. A. Berle
New York : Uslan Press, 1991,
 Buku Referensi
Cases in Singapore hospitality and tourism management
edited by Hooi Den Huan
Prentice-Hall, 1999
 Buku Teks
Mathieson, Alister, author
Tourism : economic, physical and social impacts
Longman, 1995
 Buku Teks
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