Kluaymai Sumung ก. ส.; Phitak Siriwong พ. ศ. The Story of the Professional Thai Tour Guides. Dusit Thani College Journal, [S. l.], v. 11, n. special, p. 158–170, 2018. Disponível em: https://so01.tci-thaijo.org/index.php/journaldtc/article/view/136129. Acesso em: 16 sep. 2026.