Leifer, Gloria
Elsevier Saunders, 2011
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Lowdermilk, Deitra Leonard
Mosby Elsevier, 2011
Buku Teks SO
W.B. Saunders , 1999
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by Shannon E. Perry [and others]
Elsevier Mosby, 2012
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White, Lois
Cengage Learning, 2011
Buku Teks SO