1. [1] Borton AB. Chloe (November 12, 2009). "Gravidity and Parity Definitions (and their Implications in Risk Assessment)". Patient.info. Retrieved June 26, 2013.
2. [2] Cunningham F, Leveno K, Bloom S, et al. Williams obstetrics. 22nd edn. McGraw-Hill Companies 2005.
3. [3] Al JF. Grand multiparity: a potential risk factor for adverse pregnancy outcomes. J Reprod Med 2012;57(1-2):53-7.
4. [4] Kumari AS, Badrinath P. Extreme grand multiparity: is it an obstetric risk factor? Eur J Obstet Gynecol Reprod Biol 2002;101(1):22-5.
5. Great grand multiparity--beyond the 10th delivery;Kaplan;Int J Gynaecol Obstet,1995