[No authors listed]
Kango. 1994 Sep;46(11):162-7.
PMID: 8699696

Billings DM, Bachmeier B.
NLN Publ. 1994 Jan;(19):1-32.
PMID: 7808923

[No authors listed]
Kango. 1994 Aug;46(10):159-68.
PMID: 8699679

Beck CT.
J Nurs Educ. 2001 Mar;40(3):101-9.
PMID: 11302537

HICKMAN WH.
Can Nurse. 1962 Oct;58:880-6.
PMID: 13954362

Snowden A.
Nurse Educ Today. 2013 Dec;33(12):1462-4. doi: 10.1016/j.nedt.2013.04.001. Epub 2013 May 03.
PMID: 23643794

Ruby J.
J Nurs Educ. 1999 Jan;38(1):23-7.
PMID: 9921784