Value of especially guarded territories of the Pavlodar area for development ecological tourism. Eurasian Journal of Ecology, [S. l.], v. 43, n. 2, p. 333–341, 2019. Disponível em: https://bulletin-ecology.kaznu.kz/index.php/1-eco/article/view/926. Acesso em: 5 jul. 2026.