1.
Thi N, Hoang O, Thi To H. Air quality improvement estimation using contingent valuation method in HoChiMinh City. Science and Technology Development Journal [Internet]. 31Dec.2014 [cited 8May2024];17(4):5-2. Available from: http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1533