1. 1. UNESCO International technical guidance on sexuality education: an evidence-informed approach for schools, teachers and health educators; 2009. Available from: https://www.guttmacher.org/report/abortion-worldwide-2017 (Accessed 01.03.2022)
2. 2. WHO. Standards In Sexuality Education; 2016: 60-70. Available from: https://www.bzga-whocc.de/en/publications/standards-in-sexuality-education/ (Accessed 01.03.2022)
3. 3. French RS, Mercer CH, Kane R, et al. What impact has England’s teenage pregnancy strategy had on young people’s knowledge of and access to contraceptive services? J Adolesc Health 2007; 41(6):594–601.
4. 4. Dimitrov I. Intervals between childbirths and between contracting a marriage and giving birth to the first child. Folia Medica 1978; 20(3):11–7.
5. 5. Ashford L, New prespectives on population; lessons from Cairo Popul Bull, 1995, 50, 1, 17-22.