Hugh T.W. Tan
"A Guide to Carnivorous Plants in Singapore"

Singapore Science Centre, Singapore, 1997. ISBN 9810086296, softcover

Description:

in English,
176 pp., 175 color photos, 9 drawings, 3 tables, 1 map

From the contents

Covered are N.ampullaria, gracilis, rafflesiana, x hookeriana, x trichocarpa, x dominii /intermedia, U.aurea, bifida, caerulea, gibba, minutissima.
A good book with a nice ecology chapter dealing with habitat, predators, prey, digestion and early succession in the pitcher-fluid, and pitcher fluid macrofauna of pitcher plants.