Jensen, Bernard
Dr. Jensen's Nature Has a Remedy : Healthy Secrets From Around the World
Keats Publishing, 2000
 Buku Teks SO
Goel, Satish
Nature cure for helath & Happiness
Diamond Pocket Books, 2001
 Buku Teks SO
Bradford, Nikki
Natural painkillers
Orion, 1998
 Buku Teks SO
Meredith, Sheena
The natural way with eczema
Element , 1994
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Murray, Michael
Encyclopedia of Natural Medicine
A Division of Prima Publishing, 1998
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