FRIM-UNDP/GEF peat Swamp Forest Project, 2005
Buku Teks
Strange, Morten
Periplus Editions, 1998
Buku Referensi
McClure, Howe Elliott, 1910-
SEATO, 1974
Buku Teks
McClure, Howe Elliott, 1910-
Applied Scientific Research Corporation, [date of publication not identified]
Buku Referensi
Dobby, Ernest Henry George, 1906-1981
University of London Press, 1950
Buku Teks