Thai Hoang, Huynh, and Nguyen Vinh Hao. “BUILDING INTELLIGENT CONTROL EXPERIMENTS AT LOW COST”. Science and Technology Development Journal 7, no. 9 (September 30, 2004): 44-50. Accessed May 10, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3254.