Biddle, S.,Goudas, M.(1996).Analysis of children's physical activity and its association with adult encouragement and social cognitive variables.Journal of School Health.66(2),75-78.
Brown, B. A.,Frankel, B. G.,Fennell, M. P.(1989).Hugs or shrugs: Parental and peer influence on continuity of involvement in sport by female and adolescents.Sex Roles.20,397-409.
Davison, K. K.,Cutting, T. M.,Birch, L. L.(2003).Parents' activity-related parenting practices predict girls'physical activity.Medicine & Science in Sport & Exercise.39(9),1589-1595.
Dempsey, J. M.,Kimiecik, J. C.,Horn, T. S.(1993).Parental influence on children's moderate to vigorous physical activity participation: An expectancy-value approach.Pediatric Exercise Science.5,151-167.