Arnfried A. Kielmann ...[et al.]
John Hopkins University Press, 1983
Buku Teks
The International Planned Parenthood Federation
I.P.P.F., 1970
Buku Teks
Hart, R.H.
World Health Organization, 1990
Buku Teks
Balldin, B.O.
African Medical and Research Foundation, 1975
Buku Teks
Rifkin, Susan B.
World Health Organization, 1990
Buku Teks