Simpson، J.L. & Zindani، A. M. The First Forty Days of Em-brygenesis. Cairo: ١st Conference on Islamic Medicine، J٩٨٥.

Smith، A.C. Child Development. St. Paul: West Publishing، ١٩٨٦.

Sontag، L. W. Differences in Modifiability of Fetal Behavior and Psychology. Psychsomatic Medicine، ١٩٤٤، ٦.١-١٥٤.

Sorensen، A. B. Weinert، F. E. & Sherrod، L. R. "Eds." Human Development and the Life Course. Hilsdale Lawrence Erlbaum، Assoc، ١٩٨٦.

Spacapan، S. "Ed." The Social Psychology of aging. New York: Sage، ١٩٨٨.

Sternberg، R. J. "Ed." Wisdom: Its Nature and Development. Cambridge: The University Press، ١٩٩٠.

Stevenson، H. W. "Ed." Child Psychology، ٦٢th Yearbook، NSSE، Part I. Chicago: Univ. of Chicago Press، ١٩٦٣.

Stinnett، N.، Carter، L.M. & Montgomery، J.E. Older Persons' Perceptions of their Marriage. J. of Marriage & Family، ١٩٧٢،٣٤،٦٦٥-٦٧٠.

Stroebe، M.S. & Stroebe، W. Who Suffers More؟ Sex Differences in Health Risks of the Widowed. Psychol. Bull. ١٩٨٣،٩٣،٢٧٩-٣٠١.

Strong، R. The Adolescent Views Himself. New York: McGraw-Hill، ١٩٥٧.

Sugarman، L. Life-Span Development. London: Methucn، ١٩٨٦.

Sussman، M. B. Intergenerational Family Relationships and Social Role Changes in Mddle Age. J. Gerontology، ١٩٦٠،١٥،٧١-٧٥.

Sussman، M. Relationships of Adult Children with their Parents in the United States. In Shanas، E. & Streib، G. "Eds."، ١٩٦٥.