Polit, Denise., Beck, Cheryl. Essentials of nursing research: appraising evidence for nursing practice - พิมพ์ครั้งที่ 10 - 2020 - 425 ISBN: 04070.00 Subjects--Topical Terms: Nursing -- Research-- Nursing Research-- Evidence-Based Nursing National Library of Medicine Call No.: WY20.5 / P769E