1. 12 great achievements in public health: family planning;Canadian Public Health Association,2015
2. The social and economic benefits of women’s ability to determine whether and when to have children;Sonfield,2013
3. UN Population Fund. Adding it up: the costs and benefits of investing in family planning and maternal and newborn health;Singh,2009
4. Giving women the power to plan their families;Carr;Lancet,2012
5. The power of the pill for the next generation: oral contraception’s effects on fertility, abortion, and maternal and child characteristics;Ananat;Rev Econ Stat,2012