Malcienė, Dr. Zita, and Laima Skauronė. “Application of Information Systems in Tourism and Leisure Sector”. International Journal of Social Sciences and Humanities Invention 6, no. 2 (February 28, 2019): 5341–5346. Accessed March 29, 2024. https://valleyinternational.net/index.php/theijsshi/article/view/1913.