Hokta, D., S. Wongmonta, J. Techakana, and N. Praditphonlert. “Strategies for Trang Province Tourism Potential Development”. Parichart Journal, vol. 32, no. 1, Apr. 2019, pp. 215-47, https://so05.tci-thaijo.org/index.php/parichartjournal/article/view/72280.