1. Alkula, T., Pöntinen, S., Ylöstalo, P., 1994. Sosiaalitutkimuksen kvantitatiiviset menetelmät. WSOY, Juva.
2. Mentors, not assessors;Anforth;Nurse Education Today,1992
3. Caring relationships between nursing students and their patients;Beck;Nurse Educator,1993
4. Teaching and Assessing in Clinical Nursing Practice;Bradshaw,1989
5. Statistics for nurses;Caulcott,1992