Johnson, S. M. ., S. M. . Kardos, D. Kauffman, E. Liu, and M. L. . Donaldson. “The Support Gap: New teachers’ Early Experiences in High-Income and Low-Income Schools”. Education Policy Analysis Archives, vol. 12, Oct. 2004, p. 61, doi:10.14507/epaa.v12n61.2004.