Her Majesty's Stationery Office, 1973
Buku Referensi
National conference on social welfare
Columbia University Press, 1974
Buku Teks
New York, N,Y, The Population Concil 1973,
Buku Teks
Sakti Ika Handayani
2010
UI - Skripsi (Open)
Encyclopaedia Britannica, 1972
Buku Referensi