Hopea celebica

References

1. [1]IUCN Red List of Threatened Species — http://www.iucnredlist.org/ ↩︎A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
2. [2]Flora Malesiana Series 1 — Various · Nationaal Herbarium Nederiand, Universiteit Leiden branch · http://www.archive.org ↩︎A massive treatment of the plants of the Malaysian Archipelago. Much of it has been made available to download from the Internet
3. [3]Gums, Resins and Latexes of Plant Origins. — Coppen J.J.W. · FAO, United Nations; Rome · 1995 · http://www.fao.org/docrep/ · ISBN 92-5-103757-4 ↩︎A handbook published by the Food and Agriculture Organisation of the United Nations, it provides good basic information on the sources and uses of the various gums, resins and latexes. It can be downloaded from the Internet.