Hryhorczuk, Nicholas, Alexander Zvinchuk, Zoreslava Shkiriak-Nyzhnyk, Liudmyla Slobodchenko, Alla Matsola, i Daniel Hryhorczuk. 2019. „Tourism, Personality, and Risky Behaviors Among Ukrainian Adolescents“. Turizam 23 (2). https://doi.org/10.5937/turizam23-21982.