Kien, Nguyen Trung, and Nguyen The Long. “The State of Innovation in Coffee Value Chains and Policy Implication Promoting Innovation”. Journal SCIENCE AND TECHNOLOGY POLICIES AND MANAGEMENT 8, no. 4 (January 2, 2020): 25–38. Accessed April 29, 2024. https://vietnamstijournal.net/index.php/JSTPM/article/view/314.