1. Tests of the Scale;Ager,1975
2. Cyclical variations;Asso,1987
3. Measurement of Nursing Care;Barr,1964
4. The clinical contract: an approach to competency-based clinical learning and evaluation;Beare;J. Nurs. Educ.,1985
5. From novice to expert;Benner;Am. J. Nurs.,1982