Starrs, Ann
Inter-Agency Group for Safe Motherhood, 1997
Buku Teks
WHO-Depkes RI-FKMUI, 1999
Buku Teks
Trihono
Departemen Kesehatan, 2005
Buku Teks
edited by Marge Berer and T.K. Sundari Ravindran
Blackwell Science, 1999
Buku Teks
edited J.Y. Peng, Srisomang Keovichit, Reginald Macintyre
International Development Research Centre, 1974
Buku Teks SO