Sousa, Maria José, Vasco Santo, António Sacavém, Isabel Pinto dos Reis, and Marta Correia Sampaio. “4.0 Leadership Skills in Hospitality Sector”. Journal of Reviews on Global Economics 8 (February 14, 2019): 105–117. Accessed May 2, 2024. https://www.lifescienceglobal.com/pms/index.php/jrge/article/view/5849.