Chooma T, Seangkul C, Bulsathaporn A. The Implementation of Communication Strategies to Improve English Speaking Skills for Eco-Cultural Tourism Staff at Highland Development Area in Thailand. JAM [Internet]. 2022 Feb. 17 [cited 2024 Apr. 26];6(1):18-32. Available from: https://so02.tci-thaijo.org/index.php/jam/article/view/253066