Gaya APA
Statistik, B, P.
(1991).
Statistik id 1990: stastical year book of id 1990
.
Jakarta:
Biro Pusat Statistik.
Gaya MLA
Statistik, Biro, Pusat.
"Statistik id 1990: stastical year book of id 1990".
Jakarta:
Biro Pusat Statistik,
1991.
Text.