KOUMPUN, C.; SUKSARD, S.; HOAMUANGKAEW, W.; SUTTHISSRISINN, C. Recreational Value Assessment of Phuhin Rongkla National Park by Contingent Valuation Method. Kasetsart Journal of Social Sciences, [S. l.], v. 25, n. 1, p. 33–43, 2004. Disponível em: https://so04.tci-thaijo.org/index.php/kjss/article/view/243371. Acesso em: 16 sep. 2026.