Nguyen, Dang T. H., Phi H. Cao, Hau T. Le, and Hung V. Tran. “Vibration Analysis at the Operator’s Seat of a Purple Onion Harvester”. Engineering, Technology & Applied Science Research 15, no. 5 (October 6, 2025): 27893–27898. Accessed April 18, 2026. https://etasr.com/index.php/ETASR/article/view/12798.