A manual of the dipterocarp trees of Brunei State.

by Ashton, P.S.
Published 1964

Ecological studies in the mixed dipterocarp forests of Brunei State P.S. Ashton..

by Ashton, P.S.
Published 1964

A manual of the dipterocarp trees of Brunei State and of Sarawak. Supplement by P.S. Ashton..

by Ashton, P.S.
Published 1968

A chesklist of Brunei trees by Hasan bin Pukul and P. S. Ashton.

by Hasan, Pukul

Foresters' manual of dipterocarps by C.F. Symington ; revised by P.S. Ashton & S. Appanah ; edited by H.S. Barlow.

by Symington, C.F
Published 2004