Elena V. Frolova และผู้แต่งคนอื่นๆ. (2020) A SPOTLIGHT ON RUSSIAN TOURISM AND HOSPITALITY INDUSTRY. <i>International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies</i>, <i>11</i>(4), 11A04G: 1-8.Elena V. Frolova และผู้แต่งคนอื่นๆ. "A SPOTLIGHT ON RUSSIAN TOURISM AND HOSPITALITY INDUSTRY". International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies 11 (2020):11A04G: 1-8.Elena V. Frolova และผู้แต่งคนอื่นๆ. A SPOTLIGHT ON RUSSIAN TOURISM AND HOSPITALITY INDUSTRY. TuEngr Group:ม.ป.ท. 2020.