Puotinen, C.J
Herbs to Help You Breathe Freely: Herbal remedies for asthma, allergies, sinusitis and other respiratory problems
Keats Publishing, 1996
 Buku Teks SO
Trivedi, A.K
Miracles of Herbs
Sahni Publications, 2003
 Buku Teks SO
Teeguarden, Ron
Radiant Health: The Ancient Wisdom of the Chinese Tonic Herbs
Warner Books, 1998
 Buku Teks SO
Professional Guide to Conditions, Herbs & Supplements
Integrative Medicine Communications
Integrative Medicine Communications, 2000
 Buku Teks SO
Heinerman, John
Miracle healing herbs
Prentice Hall Press, 1998
 Buku Teks SO