Gaya APA
Heriawan, R. (2009).
Statistik Indonesia 2009 = Statistical yearbook of Indonesia 2009 .
Jakarta:
Badan Pusat Statistik.
Gaya MLA
Heriawan, Rusman.
"Statistik Indonesia 2009 = Statistical yearbook of Indonesia 2009".
Jakarta:
Badan Pusat Statistik,
2009.
Text.