1. Investing in family planning: key to achieving the sustainable development goals;Starbird;Global health: science and practice,2016
2. Family Planning: A Global Handbook for Providers: Evidence-Based Guidance Developed through Worldwide Collaboration;Organization,2018
3. World Population Data Sheet with A Special Focus on Youth;Bureau,2017
4. Department of Economic and Social Affairs. Population Division. World Population;Nations,2017
5. World Population Prospects 2019: Highlights;Nations,2019