Jomyim, T. (2023) “Impact of Performance and Etiquette of Tourist Guides in the New Normal Society”, Journal of Modern business administration and management for Sustainable Development. Bangkok, Thailand, 1(1), pp. 15–24. available at: https://so19.tci-thaijo.org/index.php/JMMSD/article/view/129 (accessed: 29 May 2025).