Bozhkova, V., and Olha Prokopenko. “EDUCATIONAL SERVICE MARKETING: EDUCATIONAL SERVICE MARKETING”. JOURNAL SCIENTIFIC AND APPLIED RESEARCH 7, no. 1 (March 11, 2023): 5–13. Accessed November 7, 2024. https://jsar.ftn.shu.bg/ojs-3.3.0-7/index.php/jsar/article/view/159.