Hoai Quoc, L., and T. Van Tung. “TO APPLY FUZZY LOGIC IN OBSTACLE AVOIDANCE PROBLEM FOR MOBILE ROBOT TRACKING THE MOVING TARGET”. Science and Technology Development Journal, Vol. 6, no. 3&4, Apr. 2003, pp. 51-58, doi:https://doi.org/10.32508/stdj.v6i3&4.3317.