1. The community-based doula: an emerging role in family support;Abramson;Zero to Three,2000
2. Association Doulas de France, 2007. The European Doula Guide. 2007, PLG Impressions, Paris. 〈http://www.doulas.info/cahier2.php〉 (last accessed 10 August 2010).
3. Nurses and doulas: complementary roles to provide optimal maternity care;Ballen;Journal of Obstetrical, Gynecological, and Neonatal Nursing,2006
4. From Novice to Expert: Excellence and Power in Clinical Nursing;Benner,1984
5. Understanding the social organization of maternity care systems: midwifery as a touchstone;Benoit;Sociology of Health & Illness,2005