Vermeulen, Nico
The complete encyclopediaof container plants
Rebo International, 1998
Buku Referensi
McCaleb, Robert S, autor
The encyclopedia of popular herbs : your complete guide to the leading medicinal plants
Prima Health, 1999
Buku Teks
Wilwood, Chrissie
The Encyclopedia of Healing Plants : A Complete Guide to Aromatherapy, Flower Essences and Herbal Remedies
Piatkuss, 1998
Buku Teks SO
Beckett, Kenneth A.
The concise encyclopedia of garden plants
Grolier International, 1984
Buku Referensi
Vermeulen, Nico
The complete encyclopedia of trees and shrubs
Rebo International, 1994
Buku Referensi