akbidalhikmah.ac.id M-EXIMA.pdfVarney Helen, 1997, Varney's Midwifery, Davis Company :...
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akbidalhikmah.ac.id M-EXIMA.pdfVarney Helen, 1997, Varney's Midwifery, Davis Company : Philadelpia Varney, Helen. 2000. Buku Saku Bidan, Hal 222. Jakarta: EGC M_ŒxgMA 23 Author bienphongvnn
