Gaya APA
R, G. et al
(1992).
Fisiologi tanaman budidaya tropik
.
Yogyakarta, DIY:
Gadjah Mada University press.
Gaya MLA
R, GOLDSWORTHY,Peter. et al.
"Fisiologi tanaman budidaya tropik".
Yogyakarta, DIY:
Gadjah Mada University press,
1992.
Text.