Gaya APA
Sumatra medium and heavy hardwoods. (1998).
Bogor:
CIFOR.
Gaya Chicago
Sumatra medium and heavy hardwoods.
.
Bogor:
CIFOR,
1998.
Buku.
Gaya MLA
Sumatra medium and heavy hardwoods.
.
Bogor:
CIFOR,
1998.
Buku.
Gaya Turabian
Sumatra medium and heavy hardwoods.
Bogor:
CIFOR,
1998.
Buku.