Petcharak, S. and Subruangtong, W. (2020) “The Development of Economics Local Community of Sufficiency Economics Model in Chainat Province”, Rajapark Journal. Bangkok, Thailand, 14(36), pp. 173–188. available at: https://so05.tci-thaijo.org/index.php/RJPJ/article/view/241917 (accessed: 14 September 2026).