Journal of Population, 12 (2) 2006 : 173-184, 2006
Artikel Jurnal
edited by E. Stuart Kirby
Oxford University Press, 1956
Buku Teks
edited by E. Stuart Kirby
Oxford University Press, 1956
Buku Teks
Artikel Jurnal
Haarman, Louann, author
Oxford University Press, 1989
Buku Teks