Raymer, Robert
Spirit of Malaysia
Editions Didier Millet, 2011
 Buku Referensi
World travel encyclopedian : insight guides
APA Publications , 2007
 Buku Referensi
New horizons world guide : Pan American's Travel Facts about 108 countries
edited by Gerald W. Whitted
Pan American Airways, 1963
 Buku Teks SO
New horizons world guide : Pan Am's Travel Facts about 138 countries
edited by Gerald W. Whitted
Pan American World Airways, 1971
 Buku Teks SO
Trifoni, Jasmina
The world's 100 best adventure trips
White Star Publishers, 2013
 Buku Referensi