JANTAKHAM, S.; SAIRAKSA, D.; SINGHALERT, R. The Geotourism Development Strategies for Khon Kean Geopark Towards to UNESCO Global Geopark. Journal of Education Rajabhat Maha Sarakham University, Maha Sarakham, Thailand, v. 17, n. 1, p. 599–611, 2020. Disponível em: https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/252243. Acesso em: 8 dec. 2025.