Gaya APA
Statistik Air Bersih Water supply statistics 1999-2003. ([s.a]).
:
Badan pusat statistik.
Gaya Chicago
Statistik Air Bersih Water supply statistics 1999-2003.
.
:
Badan pusat statistik,
[s.a].
.
Gaya MLA
Statistik Air Bersih Water supply statistics 1999-2003.
.
:
Badan pusat statistik,
[s.a].
.
Gaya Turabian
Statistik Air Bersih Water supply statistics 1999-2003.
:
Badan pusat statistik,
[s.a].
.