APA Style
Wahyuni, Sri. (2002).
Biogas .
Bogor:
Penebar Swadaya.
Chicago Style
Wahyuni, Sri.
Biogas.
Bogor:
Penebar Swadaya,
2002.
Text.
MLA Style
Wahyuni, Sri.
Biogas.
Bogor:
Penebar Swadaya,
2002.
Text.
Turabian Style
Wahyuni, Sri.
Biogas.
Bogor:
Penebar Swadaya,
2002.
Print.