1.
Kluaymai Sumung กส, Phitak Siriwong พศ. The Story of the Professional Thai Tour Guides. Journaldtc [Internet]. 2018 Jul. 18 [cited 2024 May 24];11(special):158-70. Available from: https://so01.tci-thaijo.org/index.php/journaldtc/article/view/136129