Gaya APA
Statistik, B, P. (1989).
Statistik Indonesia = Statistical Year Book of Indonesia 1988 .
Jakarta:
Biro Pusat Statistik.
Gaya MLA
Statistik, Biro, Pusat.
"Statistik Indonesia = Statistical Year Book of Indonesia 1988".
Jakarta:
Biro Pusat Statistik,
1989.
print.