Xia , L., Ma , D., Chen , J., Ye , Z., Zhao , M. and Ma , C. (2024) “The Design of Small Multi-Functional Tree Planting Machine Based on PID Controuer Main Control Drive System”, Journal of Research in Multidisciplinary Methods and Applications, 3(6), p. 01240306002. Available at: http://www.satursonpublishing.com/jrmma/article/view/a01240306002 (Accessed: 18 October 2024).