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Diakses pada 25 September 2019WHO. https://www.who.int/news-room/fact-sheets/detail/maternal-mortality
Diakses pada 25 September 2019Depkes. http://www.depkes.go.id/download.php?file=download/pusdatin/infodatin/infodatin-ibu.pdf
Diakses pada 25 September 2019