1. Anderson, M.K., Hall, S.J., Martin, M. (2000). Sport injury management, (2nd ed., pp. 492–495). Baltimore: Lippincott Williams & Wilkins.
2. Rehabilitation of patellofemoral dysfunction in the athlete;Beckman;Clinics in Sports Medicine,1989
3. Gait analysis with references to chondromalacia patella;Dillon;Journal of Orthopaedic and Sports Physical Therapy,1983
4. Practical management of patellofemoral pain;Fredericson;Clinical Journal of Sport Medicine,2002
5. Disorders of the patellofemoral joint;Fulkerson,1997