Aliuddin Bakar M, Firdaus Abdul Rashid N, Syahlan S. Comparison of an effective working hour and harvesting cost between manual harvesting (chisel and sickle) and mechanised harvesting (CKAT and motorised cutter) in oil palm plantation. IJET [Internet]. 2018 May 22 [cited 2024 Apr. 30];7(2.29):282-6. Available from: https://sciencepubco.com/index.php/ijet/article/view/13333