Gaya APA
Rankine, I., Fairhurst, T. (1998).
Field Handbook Oil Palm Series Volume 1 .
Singapore:
Oxford Graphic Printers Pte. Ltd..
Gaya MLA
Rankine, I., Fairhurst, T..
Field Handbook Oil Palm Series Volume 1.
Singapore:
Oxford Graphic Printers Pte. Ltd.,
1998.
Text.