Ocelli Ungheri, Bruno, and Hélder Ferreira Isayama. “ The Knowledge and Professional Training in Leisure: An Analysis Performed in the Field of Public Policy”. Brazilian Journal of Pedagogical Studies 98, no. 249 (August 21, 2017). Accessed May 17, 2024. https://rbep.inep.gov.br/ojs3/index.php/rbep/article/view/3376.