Yeoman, John
The wild washerwomen
Random House, 2009
 Buku Teks
Torday, Piers
The last wild
Puffin Books, 2015
 Buku Teks
Ozawa, Terutomo
The evolution of the world economy : the 'flying-geese' theory of multinational corporations and structural transformation
Edward Elgar Pub, 2016
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Extreme earth: wildlife, wild places, wild weather
Robert Cornraads and five outhers, author
Reader's Digest, 2015
 Buku Referensi
Frazer, James George, Sir, 1854-1941
Spirits of the corn and of the wild
Macmillan, 1955
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