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Referensi :
seperti biasa, reff diambil dari buku di ebook google, dsb

Perinatal Cardiologi Handbook, Rima S. Bader.,Lisa K. Hornberger., James Huhta., Mosby Inc, 2008
Comprehensive Neonatal Care An Inerdisciplinary Approach, 2007, Saunders
Fetal WELL-BEING Physiological Basis and Methods of Clinical Assessment, Miriam Katza., Israel Meizner., Vaclav Insler., CRC Press, 1990
FETAL MEDICINE Basic Science and Clinical Practice, Charles H. Rodeck., Martin J. WHittle., Elsevier, 2009
Vascular Biology of the Placenta, Morgan & Claypool Life Sciences, 2010
https://www.stanfordchildrens.org/en/...
Dasar-Dasar Keperawatan Maternitas Edisi 6, Persis Mary Hamilton, EGC,1995