Gaya APA
Grafika, R, S. (2007).
"Study On The Investment Prospect Biodiesel In Indonesia .
Jakarta:
PT. Capricorn Indonesia Consult Inc.
Gaya MLA
Grafika, Redaksi, Sinar.
""Study On The Investment Prospect Biodiesel In Indonesia".
Jakarta:
PT. Capricorn Indonesia Consult Inc,
2007.
book.