9The WLRA Board(1993).WLRA international charter for leisure education. In Ruskin, Hillel & Sivan, Atara. Leisure Education: Towards the 21st Century(pp.7). Brigham Young University.
10Ruskin, Hillel & Sivan, Atara(1995). Goals, Obiectives and Strategies in School Curricula in Leisure Education. In Ruskin, Hillel & Sivan, Atara. Leisure Education: Towards the 21st Century(pp.23-33). Brigham Young University.