Sex Differences in Neonatal Eye Contact Time. Hittelman, John H., and Barbara Dickes. | 1979 | Biologi
Gender Differences in Personality and Interests: When, Where, and Why? Lippa, Richard A. | 2010 | Biologi
Men and Things, Women and People: A Meta-Analysis of Sex Differences in Interests. Su, Rong, James Rounds, and Patrick I. Armstrong. | 2009 | Biologi
Sex Differences in Response to Children’s Toys in Nonhuman Primates (Cercopithecus aethiops sabaeus). Alexander, Gerianne M., and Melissa Hines. | 2002 | Biologi
Foetal Testosterone and Eye Contact in 12-Month-Old Human Infants. Lutchmaya, S., et al. | 2002 | Biologi
