Preethi, P, T Vidhan Singh, D Ramajayam, and M V Prasad. 2018. “Pole Harvesting - A Skillful Operation in Oil Palm Fresh Fruit Bunch (FFB) Harvest”. Journal of Plantation Crops 46 (3):204-9. https://updatepublishing.com/journal/index.php/JPC/article/view/5797.