Hopea aptera

References

1. [1]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
2. [2]The World List of Threatened Trees — Oldfield S.; Lusty C.; and MacKinven A. · World Conservation Press; Cambridge UK · 1998 · http://www.biodiversitylibrary.org · ISBN 1-899628-10 X ↩︎A list of the trees on the IUCN Red List of Threatened Plant Species in 1998, often giving some information on habitat and the reasons for being on the list. It can be downloaded from the Internet.
3. [3]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.
4. [4]Tropical Timbers of the World. Ag. Handbook No. 607. — Chudnoff. Martin. · USDA Forest Service. Wisconsin. · 1984 ↩︎Terse details on the properties of the wood of almost 400 species of trees from the Tropics.
5. [5]Tropix 7 — CIRAD · http://tropix.cirad.fr/en ↩︎An on-line guide to the timbers of 245 species of trees.
6. [6]Timber Notes-MediumHardwoods III (Mata Ulat, Mempening, Mengkulang, Meransi, Merawan) — Choo K.T.; Lim S.C.; Gan K.S. · Forest Research Institute; Malaysia · 2001 · http://www.frim.gov.my/?page_id=1842 · ISBN 139-258 ↩︎Part of an excellent series of publications, this one giving basic information on the properties of five types of hardwood timbers from southeast Asia. It can be downloaded from the Internet.