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Buku Teks SO
edited, Bernard Berelson
University of Chicago, [date of publication not identified]
Buku Teks
by World Health Organization
World Health Organization, 1996
Buku Teks
Journal of Population, Vol. 3 No. 3 1997 : 197-222, 1997
Artikel Jurnal
Jakarta : international society for islamic activities on population and family welfare, 1990.,
Buku Teks