ZVYAGINTSEVA, Elena Petrovna, Irina Vladimirovna ZENKINA, Elena Borisovna MANAKHOVA, Elena Nikolaevna BORISOVA, & Olga Valeryevna LYSIKOVA. " Improving the Technology for Training Personnel in the Service Sector." Journal of Environmental Management and Tourism [Online], 11.6 (2020): 1378 - 1384. Web. 23 Nov. 2024