١٨٧- Piaget, J. "١٩٧٧"; The moral judgment of the child. New York: Penguin books.
١٨٨- Plomin, R. De Fries, J. C. Mc Clearn, G. E. & Rutter, M. "١٩٩٧"; Behavioral genetics. ٣rd. ed., New York: W. H. Freeman.
١٨٩- Reese, H. W. & Overton, W. F. "١٩٧٠": Models of development and theories of development. "In": L. R. Goulet & P. B. Baltes "Eds.": Life- Span developmental Psychology: Research and theory. New York: Academic Press.
١٩٠- Rest, J. R. "١٩٧٦"; New approaches in the assessment of moral judgment. "In" T. Lickona "Ed." Moral development and behavior: Theory, research, and social issues. New York: Holt, Rinehart, and Winston.
١٩١- Rothman, G. R. "١٩٧٦"; The influence of moral resoning on behavioral choices. Child Development, ٤٧, ٣٩٧- ٤٠٦.
١٩٢- Sadorow, L. W. "١٩٩٥": Psychology. ٣rd ed., New York: Brown & Benchmark.
١٩٣- Santrock, J. W. "١٩٩٨"; Child development. ٨th. ed. New York:
Mc "tew Hill.
١٩٤- Scarr, S. "١٩٦٦": Genet: c Factors in activity motivation. Child Development, ٣٧, ٦٦٣- ٦٧٣.
١٩٥- Scarr, S. & Weinberg, R. A. "١٩٧٦": IQ test Performance of black children adopted by white families American Psychologyist, ٣١, ٧٢٦- ٧٣٩.
١٩٦- Scarr, S. "١٩٩٦"; Best of human genetics. Contemporary Psychology, ٤١, ١٤٩- ١٥٠.
١٩٧- Schaie, K. W. "١٩٦٥": A general model for the study of developmental Problems. Psychological Bulletin, ٦٤, ٩٢- ١٠٧.
١٩٨- Sears, R. R. "١٩٦٠": Reporting research to Parents J. Nursery Edusation, ١٦, ٢٥- ٣٢.