Quang Hien N, Thanh Phong H, Minh Kha V. A STUDY ON CORRELATION BETWEEN CRUDE OIL PRICE AND VALUE OF USD AND INTERNATIONAL UREA PRICE. Science and Technology Development Journal [Internet]. 31Jul.2005 [cited 17May2024];8(7):85-. Available from: http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3046