Hertz, Barbara, author
World Bank, 1987
Buku Teks
Starrs, Ann, author
Inter-Agency Group for Safe Motherhood, 1997
Buku Teks
WHO-Depkes RI-FKMUI, 1999
Buku Teks
Trihono, author
Departemen Kesehatan, 2005
Buku Teks
edited by Marge Berer and T.K. Sundari Ravindran
Blackwell Science, 1999
Buku Teks