Zaynalov N. R., Vafayev M. A., Sharipova U. B, Nasriddinova P. F. Feedback NPS Index for Assessing the Quality of Education. MP [Internet]. 2023 Dec. 13 [cited 2025 Mar. 11];42:443-8. Available from: https://miastoprzyszlosci.com.pl/index.php/mp/article/view/2099