Warren, William
Tropical garden plants
Thames and Hudson, 1997
 Buku Referensi
Beckett, Kenneth A.
The concise encyclopedia of garden plants
Grolier International, 1984
 Buku Referensi
Greulach, Victor A.
Plants: an introduction to modern botany
John Wiley & Sons, 1966
 Buku Teks SO
Sharma, Brij kishore
Introduction to the Constitution of India
PHI Learning, 2009
 Buku Teks
Wilwood, Chrissie
The Encyclopedia of Healing Plants : A Complete Guide to Aromatherapy, Flower Essences and Herbal Remedies
Piatkuss, 1998
 Buku Teks SO