Ochoa, Luis Siguencia, Herman Damian, and Gilberto Marzano. “INFLUENCE OF INFORMATION SOURCES ON TOURISTS: A CASE STUDY OF STUDENTS OF MARKETING AND MANAGEMENT IN THE SILESIAN REGION”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 5 (May 21, 2019): 449–458. Accessed May 24, 2024. https://journals.ru.lv/index.php/SIE/article/view/3679.