Wilson, Holly Skodol
Nursing in research
Addison-Wesley, 1985
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Castles, Mary Reardom
Primer of nursing research
W.B. Saunders, 1987
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Nieswiadomy, Rose Marie
Foundations of nursing research
Prentice-Hall, 2002
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Polit, Denise F.
Nursing research: principles and methods
Lippincott Williams & Wilkins, 2004
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Nieswiadomy, Rose Marie
Foundations of nursing research
Appletton & Lange , 1993
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