Tang, Maoyin, Zhenglong Zhu, Lili Guo, Yongxin Zhou, and Xinyue Zhao. 2024. “Design of Plant Protection Car Based on PLC and Stepper Motor”. Journal of Research in Multidisciplinary Methods and Applications 3 (6):01240306004. http://www.satursonpublishing.com/jrmma/article/view/a01240306004.