Natural History Publications (Borneo) Sdn. Bhd., Kota Kinabalu, Sabah, Malaysia, 2001. ISBN 9838120502, hardcover
From the contents
The chapter on the species goes into far greater taxonomic detail than Nepenthes of Borneo, with a similar format
to that used by Jebb & Cheek in their 1997 revision of the genus. An excellent
treatment of Nepenthes in the covered region.
Review CPN 31(1), 2002, p. 9 by Jan Schlauer: "I recommend it without any reservation."