Gaya APA
Jakarta, B, P, S. (1997).
Statistik perusahaan hutan tanaman industri 1994 = statistics of timer estate 1994 .
Jakarta:
BPS.
Gaya MLA
Jakarta, BIRO, Pusat, Statistik,.
"Statistik perusahaan hutan tanaman industri 1994 = statistics of timer estate 1994".
Jakarta:
BPS,
1997.
Buku.