Joško Sindik, Ana-Mary Bauer Čuk. PSYCHOLOGICAL CHARACTERISTICS AND TRAITS IN MALE HANDBALL PLAYERS – OPTIMISM, ATHLETE ENGAGEMENT AND MENTAL ENERGY. SPORTSPA [Internet]. 2025 Apr. 24 [cited 2025 Jun. 6];13(1). Available from: http://sportspa.ftos.untz.ba/index.php/sportspa/article/view/144