Nguyen Quang Hoan, Ly Dong Ha, Ngo Xuan Trang, and Le Cong Hieu. 2018. “WEATHER FORECAST AND PATTERN CHARACTER RECOGNITION BY BACKPROPAGATION NEURAL NETWORKS”. Journal of Applied Science and Technology 16 (January), 57-63. http://jst.utehy.edu.vn/index.php/jst/article/view/145.