Phakpapai, Charin, and Nattapong Chaisaengpratheep. “The Thai tourists satisfaction visiting Khon Kaen Zoo, Khon Kaen province”. RMUTSB ACADEMIC JOURNAL (HUMANITIES AND SOCIAL SCIENCES) 6, no. 1 (June 27, 2021): 50–63. accessed September 10, 2026. https://so05.tci-thaijo.org/index.php/rmutsb-hs/article/view/250608.