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2. Carey Nancy, Lewis Laurie, Farris Elizabeth, Burns Shelley K. 1998. Parent Involvement in Children's Education: Efforts by Public Elementary Schools (NCES 98-032). Washington, DC: U.S. Government Printing Office.
3. Catsambis Sophia. 1998. “Expanding Knowledge of Parental Involvement in Secondary Education: Effects on High School Academic Success” (Report 27). Baltimore, MD: Center for Research on the Education of Students Placed at Risk, Johns Hopkins University.
4. Catsambis Sophia, Garland Janet E. 1997. “Parental Involvement in Students' Education During Middle and High School” (Report 18). Baltimore, MD: Center for Research on the Education of Students Placed at Risk, Johns Hopkins University.