Gaya APA

Fairhust, T., Calliman, J. (2005). Oil Palm: Nutrient Disorders and Nutrient Management (2). Potash: Potash & Phosphate Institute PPI.

Gaya MLA

Fairhust, Thomas., Calliman, Jean-Pierre. "Oil Palm: Nutrient Disorders and Nutrient Management". 2 Potash: Potash & Phosphate Institute PPI, 2005. Text.