Zhunusova А., Ayapbekova А., and Kurmankulova Н. “The Essence of Ecotourism and the Problems of Its Development in Kazakhstan”. ECONOMIC Series of the Bulletin of the L N Gumilyov ENU, no. 2, Jan. 2023, pp. 252-61, https://bulecon.enu.kz/index.php/main/article/view/206.