Polman, Katrien
The Hague Martinus Nijhoff, 1981
Buku Referensi
Gershoy, Leo, author
Appleton Century Crofts, 1964
Buku Teks
FRIM-UNDP/GEF peat Swamp Forest Project, 2005
Buku Teks
Orta, John, author
Garland Publishing, 1988
Buku Referensi
Rothschild, Bruce M., author
Springer, 2012
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