Foster, Steven
Desk Reference to Nature's Medicine
National Geographic Society, 2006
 Buku Teks SO
Foster, Steven
Desk Reference to Nature's Medicine
National Geographic Society, 2006
 Buku Teks SO
Vries, Jan de
Traditional Home and Herbal Remedies
Mainstream Publishing Company, 1986
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Nissen, Nina
Teach Yourself: Herbal Medicine
Teach Yourself Books, 2001
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Phytotherapy: A Quick Reference to Herbal Medicine
Francesco Capasso, Timothy S. Gaginella, Guliano Grandolini, Angelo A. Izzo, Frank Krabbes
Springer, 2003
 Buku Teks SO