http://www.biography.com/people/florence-nightingale-9423539
https://www.youtube.com/watch?v=o0FWqDlOYYs
http://currentnursing.com/nursing_theory/Florence_Nightingale_theory.html
http://www.phoenix.edu/profiles/faculty/marilyn-klakovich/articles/florence-nightingale-a-nursing-leader-ahead-of-her-time.html
http://www.nursing-theory.org/theories-and-models/king-theory-of-goal-attainment.php
http://www.nursing-theory.org/theories-and-models/orem-self-care-deficit-theory.php
George B. Julia (2010). Nursing Theories: The Base for Professional Nursing Practice. Pearson Higher Ed USA.
Meleis Ibrahim Afaf (1997). Theoretical Nursing : Development & Progress 3rd ed.Philadelphia, Lippincott.
George B. Julia , Nursing Theories- The base for professional Nursing Practice , 3rd ed. Norwalk, Appleton & Lange.
Wills M.Evelyn, McEwen Melanie (2002). Theoretical Basis for Nursing Philadelphia. Lippincott Williams& wilkins.
https://www.youtube.com/watch?v=o0FWqDlOYYs
http://currentnursing.com/nursing_theory/Florence_Nightingale_theory.html
http://www.phoenix.edu/profiles/faculty/marilyn-klakovich/articles/florence-nightingale-a-nursing-leader-ahead-of-her-time.html
http://www.nursing-theory.org/theories-and-models/king-theory-of-goal-attainment.php
http://www.nursing-theory.org/theories-and-models/orem-self-care-deficit-theory.php
George B. Julia (2010). Nursing Theories: The Base for Professional Nursing Practice. Pearson Higher Ed USA.
Meleis Ibrahim Afaf (1997). Theoretical Nursing : Development & Progress 3rd ed.Philadelphia, Lippincott.
George B. Julia , Nursing Theories- The base for professional Nursing Practice , 3rd ed. Norwalk, Appleton & Lange.
Wills M.Evelyn, McEwen Melanie (2002). Theoretical Basis for Nursing Philadelphia. Lippincott Williams& wilkins.
Biography of Sister Callista Roy - Sister Callista's Theory. (n.d.). Retrieved from https://sites.google.com/site/sistercallistastheory/about-sister-callista
About Sr. Callista Roy. (n.d.). Retrieved from http://nursingtheoryandtheoristsroyorem.weebly.com/about-sr-callista-roy.html
Callista Roy. (n.d.). Retrieved from http://www.nurses.info/nursing_theory_person_roy_callista.htm
Roy's Adaptation Model. (n.d.). Retrieved from http://currentnursing.com/nursing_theory/Roy_adaptation_model.html
About Sr. Callista Roy. (n.d.). Retrieved from http://nursingtheoryandtheoristsroyorem.weebly.com/about-sr-callista-roy.html
Callista Roy. (n.d.). Retrieved from http://www.nurses.info/nursing_theory_person_roy_callista.htm
Roy's Adaptation Model. (n.d.). Retrieved from http://currentnursing.com/nursing_theory/Roy_adaptation_model.html