Sabirov Д.М., and Smykova М.Р. “Innovative Quality Management Methods of Hotel Services”. ECONOMIC Series of the Bulletin of the L N Gumilyov ENU, no. 2 (January 27, 2023): 99–107. Accessed November 21, 2024. https://bulecon.enu.kz/index.php/main/article/view/395.