Evans, Mark
A Guide to Herbal Remedies
Wigmore Publications, 1990
 Buku Teks SO
Trivedi, A.K
Miracles of Herbs
Sahni Publications, 2003
 Buku Teks SO
Balch, Phyllis A
Prescription for Nutritional Healing: The A-to-Z Guide to Supplements
Penguin Putnam, 2002
 Buku Teks SO
Ulbricht, Catherine E., in-chief-eiditor
Natural standard herb and supplement guide: an evidence-based reference
Mosby Elsevier, 2010
 Buku Referensi
Rogers, Carol
The Women's Guide to Herbal Medicine
Hamish Hamilton, 1995
 Buku Teks SO