Suwannapracha, Kanittha, Parichat Chairuean, and Sinupol Pimpok. 2025. “Problems and Needs for English Communication Development of Tourism Personnel in Nan Province”. Rajamangala University of Technology Tawan-ok Social Science Journal 14 (2):78-91. https://doi.org/10.63271/rmuttosj.v14i2.276898.