1. Loaiza E, Liang M (2013) Adolescent Pregnancy: A Review of the Evidence. UNFPA, New York, USA. p. 1-60.
2. World Health Organization, United Nations Population Fund (2006) Married adolescents: no place of safety. WHO-UNFPA, Geneva, Switzerland, p. 1-40.
3. WHO (2004) Adolescent pregnancy- Issues in adolescent health and development, WHO discussion papers on adolescence p. 1- 92.
4. UNICEF (2001) A league table of teenage births in rich nations. Innocenti Research Centre, Florence, Italy. Innocenti Report Card Issue No.3. p. 1-36.
5. UNFPA (2010) MDG5b+Info database with data from DHS and MICS studies (www.devinfo.org/mdg5b). Absolute numbers were estimated using United Nations Population Division.