- Carno, G (2017). Asheghi means separation. Translated into Persian by Nahid Sepehrpour, Tehran: Farhang-e Zandegi Foundation. second edition.
- Carroll, J. S., Badger, S., & Yang, C. (2006). Delaying Marriage: The Trends and the Consequences
- Carroll, J. S., Badger, S., & Yang, C. (2006). The Ability to Negotiate or the Ability to Love?: Evaluating the Developmental Domains of Marital Competence. Journal of Family Issues, 27, 1001-1032.
- Entezari, Ghiasvand & Abbasi (2016). Factors Affecting Increasing the Marriage Age of Youth in Tehran. Journal: Welfare Planning and Social Development, No. 33, 201 to 234
- Farzizadeh, Z (2014). Social Exclusion of Single Rural Girls, Local Development (Rural-Urban). Volume 6 - Number 1, 123-146
- Ghaneh Azabadi & et al. (2014). Life experiences of girls 30 years and older in the hot field of stigma caused by celibacy (Case study: Isfahan and Yazd cities). Iranian Journal of Social Issues, Volume 4, Number 2, Fall and Winter.
- Ghani Rad, M & Ezzalti Moghadam, F (2010). A Critical Study of Diagnoses and Policies in Family and Marriage Issues. Social Issues of Iran, 1 (7): 161-193
- Ghiasvand, A (2005). Delayed age of marriage among young people. Hamshahri newspaper, dated Sunday(15), may, 2005
- Ghiasvand, A (2017). Research project.Survey of values and attitudes of women in Tehran. Client: Social and Cultural Deputy of Tehran Municipality.
- Glasser, W (2017). Selection Theory Translated into Persian by Ali Sahebdali, Tehran: Sayeh Sokhan.
- Good, William J. (1989).The Family, Prentice-Hall of India, Second Edition.
- -Habibpour. K, K & Ghaffari, G (2011). Causes of increasing marriage age for girls. women in development and politics (Women's Research), Volume 9, Number 1, Spring, pp.7-34.
- Hosseini, S.H & Izadi, Z (2016). Phenomenology of lived experience of single women Study population: Single women over 35 years old in Tehran. Journal of Women's Studies, Year 14, Issue 1, Spring.
- Kajbaf et al. (2008). Qualitative analysis of unwanted celibacy in girls and boys, family research. volume 4, number 14, 123-132
- Kazemipour, Sh (2004). The Evolution of Marriage Age in Iran and Demographic Factors Affecting It. Women's Research, Volume 2, pp. 124-103
- Mahzoon, A(2016). Demographic Policy in Iran, Fertility and Aging. Conference on Theoretical and Practical Review of Government-Nation Relations: Past, Present and Future, Allameh Tabataba'i University.
- March, J (2017). An Introduction to Decision Making (How Does Decision Making Happen?) Translated into Persian by Ebrahim Afshar, Tehran: Ney Publishing.
- Ministry of Culture and Islamic Guidance of Iran, (2015). National Survey of Iranian Values and Attitudes. Office of National Plans
- Pour Etemad, H(2004). Psychosocial consequences of unwanted singleness among girls, First Congress of Family Pathology, Family Research Institute, Shahid Beheshti University
- Qaderzadeh, O et al (2017). Semantic reconstruction of girls' lived experience of of being single, women in development and politics (Women's Research). Volume 15, Number 3, 403 - 426
- Sassler, S., Addo, F. R., & Lichter, D. T. (2012). The Tempo of Sexual Activity and Later Relationship Quality. Journal of Marriage and Family, 74, 708-725
- Torabi, F & Torabi, A; Mandgari, A & A (2017). Marital and Family Developments in Iran. Producer: Abbasi Shavazi, Mohammad Jalal, Research Report: Population Situation in the Islamic Republic of Iran, Institute of Comprehensive and Specialized Population Studies and Management, pp. 50-70