Chau MQ, Nguyen VT. Effects of Frequency and Mass of Eccentric Balls on Picking Force of The Coffee Fruit for The As-Fabricated Harvesting Machines. Int. J. Adv. Sci. Eng. Inf. Technol. [Internet]. 2019 May 26 [cited 2024 Jun. 3];9(3):1039-45. Available from: http://ijaseit.insightsociety.org/index.php/ijaseit/article/view/8578