Stoykov, Krasimir, Georgi Uzunov, Stefan Uchikov, Albena Ivanova, and Elena Yosifova. 2025. “MIXED DOUBLES IN UNIVERSITY TENNIS AS A TOOL FOR SOCIALIZATION AND INTERCULTURAL INTEGRATION”. KNOWLEDGE - International Journal 73 (1):389-93. http://ojs.ikm.mk/index.php/kij/article/view/7926.