Борисова, О. В., and Ю. П. Мічуда. “Marketing As Means of Adaptation of Professional Tennis to Conditions of the Modern Market”. Slobozhanskyi Herald of Science and Sport, no. 4(27) (December 31, 2011): 186–189. Accessed May 5, 2024. https://journals.uran.ua/index.php/1991-0177/article/view/29202.