Seidualin Д.; Mukanov А. Optimization of the Information Portal for the Development of Ecotourism in the Ulytau Nature Park. Economic series of the Bulletin of L.N. Gumilyov ENU, [S. l.], n. 1, p. 292–310, 2026. DOI: 10.32523/2789-4320-2026-1-292-310. Disponível em: https://bulecon.enu.kz/index.php/main/article/view/1226. Acesso em: 8 apr. 2026.