Piccinelli M., Wilkinson G. (2000). Gender differences in depression // British Journal of Psychiatry, 177, 486–492.
Pilot, M., Dahlheim, M. E., Hoelzel A. R. (2010). Social cohesion among kin, gene flow without dispersal and the evolution of population genetic structure in the killer whale (Orcinus orca) // Jurnal of Evolutionary Biology, volume 23, issue 1, pp. 20–31.
Pinquart, M. (2003). Loneliness in married, widowed, divorced, and never-married older adults // Journal of Social and Personal Relationships, 20(1), 31–53.
Pinquart, M., & Sorensen, S. (2000). Influences of socioeconomic status, social network, and competence on subjective well-being in later life: A meta-analysis. Psychology and Aging, 15, 187–224.
Pleshkova N. L., Muhamedrahimov R. J. Quality of attachment in St Petersburg (Russian Federation): A sample of family-reared infants // Clinical Child Psychology and Psychiatry, 2010, Vol. 15,3. Pp. 361–372.
Ploubidis, G. B., Silverwood, R. J., DeStavola, B., & Grundy, E. (2015). Life-Course Partnership Status and Biomarkers in Midlife: Evidence From the 1958 British Birth Cohort // American Journal of Public Health. August; 105(8): 1596–1603.
Potter, B., Irish, J., Reuther, J. and McKinney, H. New insights into Eastern Beringian mortuary behavior: A terminal Pleistocene double infant burial at Upward Sun River // PNAS December 2, 2014 111 (48) 17060-17065.
Powdthavee, N., Vignoles, A. (2008) Mental Health of Parents and Life Satisfaction of Children: A Within-Family Analysis of Intergenerational Transmission of Well-Being // Social Indicators Research, 88(3), 397–422.
Power, C. Hadza gender rituals — epeme and maitoko — considered as counterparts // Hunter Gatherer Research (2015), 1, (3), 333–358.
Power, C., Watts, I. The Woman With The Zebra's Penis Gender, Mutability And Performance // Journal of the Royal Anthropological Institute, 1997, Vol. 3 Issue 3, p 537–560.
Pradhan, G. R., et al. The evolution of female copulation calls in primates: A review and a new model // Behavioral Ecology and Sociobiology. 2006. № 59(3). Pp. 333–343.
Profet, M. (1993). Menstruation as a defense against pathogens transported by sperm // The Quarterly Review of Biology, 68(3): 335–86.
Rao, K. V., & Demaris, A. (1995). Coital frequency among married and cohabiting couples in the United States. Journal of Biosocial Science, 27(2), 135–150.
Read J., Ross C. A. (2003). Psychological trauma and psychosis: another reason why people diagnosed schizophrenic must be offered psychological therapies // Journal of the American Academy of Psychoanalyses and Dynamic Psychiatry. 31 (1):247–68.