Quoc Bao T, Nhat Tan L, Thi Thanh An L, Thi Thien My B. Forecasting stock index based on hybrid artificial neural network models. Science & Technology Development Journal - Economics - Law and Management [Internet]. 5Jun.2019 [cited 3Aug.2020];3(1):52-7. Available from: http://stdjelm.scienceandtechnology.com.vn/index.php/stdjelm/article/view/540