Teygeler, Rene, author
Hague, 2001
Buku Teks
FRIM-UNDP/GEF peat Swamp Forest Project, 2005
Buku Teks
Balloffet, Nelly, author
[American Library association, ], 2005
eBooks
Kemp, Herman C., author
KITLV Press, 1990
Buku Referensi
edited by G.E. Gorman, Sydney J. Shep
Facet, 2007
Buku Teks