L. G Hayutin, B Reed Knight, R. L Blount, J Lewis and M. L. McCormick
Journal of Pediatric Psychology 34 ( 10 ): 1155 - 1164 , 2009
J Gilleland, R. L Blount, R. M Campbell, G. L Johnson, K. J Dooley and P. Simpson
Journal of Pediatric Psychology 34 ( 10 ): 1170 - 1174 , 2009