Chooma, Thaweesak, Chutarat Seangkul, and Apaporn Bulsathaporn. “The Implementation of Communication Strategies to Improve English Speaking Skills for Eco-Cultural Tourism Staff at Highland Development Area in Thailand”. Journal of Arts Management 6, no. 1 (February 17, 2022): 18–32. Accessed April 26, 2024. https://so02.tci-thaijo.org/index.php/jam/article/view/253066.