I am trying to find articles and journals on florence nightingale theory
The Florence Nightingale theory is found in our nursing databases. The primary nursing database is CINAHL and this link is to a search on "Florence Nightingale Theory". There are several articles in the search results that will answer your questions. Off-campus you will be required to use your IUE username and passphrase.
Additional nursing databases are found on the Nursing & Health LibGuide