Nguyen Q, Nguyen T, Le P, Pham Q. Determination of caffeine content and the volatile compound in some products of roasted and instant coffee in Vietnam. VNUHCM Journal of Science and Technology Development [Internet]. 30Jun.2015 [cited 9May2025];18(2):85-3. Available from: http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/1062