1. Personality: a Psychological Interpretation;Allport,1937
2. Pain, anxiety, and perceived control;Bowers;Journal of Consulting and Clinical Psychology,1968
3. Mother's perceptions of their labor experiences;Butani;Maternal-Child Nursing Journal,1980
4. Research Issues in the Assessment of Birth Settings;Committee on Assessing Alternative Birth Settings,1982
5. Psychological correlates of childbirth pain;Davenport-Slack;Psychosomatic Medicine,1974