Soisri, N. and Thammapitak, S. (2021) “The Policy Formulation for Cosmetic Herbal Industry of Product Upstream in the Eastern Economic Corridor”, Ph.D. in Social Sciences Journal, 11(2), pp. 457–468. available at: https://so05.tci-thaijo.org/index.php/phdssj/article/view/191291 (accessed: 21 September 2026).