Gaya APA
statistik, B, P. (1990).
Statistik Indonesia 1990 = Statistical Year Book Of Indonesia 1990 .
Jakarta:
Biro Pusat Statistik.
Gaya MLA
statistik, Biro, Pusat.
"Statistik Indonesia 1990 = Statistical Year Book Of Indonesia 1990".
Jakarta:
Biro Pusat Statistik,
1990.
Text.