FrymoyerJ.W. (1984). Helping your patients avoid low back pain. Journal of Musculoskeletal Medicine, 1(3), 65–74.
2.
SpradleyB.W. (1981). Community Health Nursing: Concepts and Practice. Boston: Little, Brown and Company.
3.
UstbyR.J. (1981). Pre-employment back x-rays — an unnecessary practice: Try another approach!Occupational Health Nursing, 29(7), 20–23.
4.
YuT.RohtL.H.WiseR.A.KilianD.J., & WeirF.W. (1984). Low-back pain in industry: An old problem revisited. Journal of Occupational Medicine, 26(7), 517–524.