Howard, A. W., MacArthur, C., Willan, A., Rothman, L., Moses-McKeag, A., & MacPherson, A. K. (2005). The effect of safer play equipment on playground injury rates among school children. Canadian Medical Association.

Howard, Andrew W., Colin MacArthur, Andrew Willan, Linda Rothman, Alexandra Moses-McKeag, and Alison K. MacPherson. The Effect of Safer Play Equipment On Playground Injury Rates Among School Children. Canadian Medical Association, 2005.

Howard, Andrew W., et al. The Effect of Safer Play Equipment On Playground Injury Rates Among School Children. Canadian Medical Association, 2005.