Gelen, Nuran Kandaz, and Gülten Hergüner. “Leisure Time Spending Assessment Forms of the Physical Education and Sport Teachers (Sakarya City Example)”. Journal of Human Sciences 4, no. 1 (May 31, 2007). Accessed April 28, 2024. https://www.j-humansciences.com/ojs/index.php/IJHS/article/view/278.