Tran Hoang Chinh, Nguyen Minh Tam, and Nguyen Van Dong Hai. “Application of Pid-Fuzzy Control for Pendubot”. Journal of Technical Education Science, vol. 12, no. Special Issue 02, Oct. 2017, pp. 61-67, https://www.jte.edu.vn/index.php/jte/article/view/379.