@ARTICLE{Ishak_W._Development_2011, author={Ishak, W. and Hudzari, R. and Ridzuan, M.}, volume={59}, number={No 3}, journal={Bulletin of the Polish Academy of Sciences Technical Sciences}, pages={299-302}, howpublished={online}, year={2011}, title={Development of variable rate sprayer for oil palm plantation}, URL={http://journals.pan.pl/Content/83335/PDF/08_paper.pdf}, doi={10.2478/v10175-011-0037-7}, }