Gaya APA
Sadulloh, U. et al (2009).
The Sustainable Farming Development On Sloping Volcano Mountain .
Magelang:
Pustaka Jaya.
Gaya MLA
Sadulloh, Uyoh. et al.
"The Sustainable Farming Development On Sloping Volcano Mountain".
Magelang:
Pustaka Jaya,
2009.
Text.