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Majalah, Jurnal, Buletin
Billington, Michael O., author
EIR News Service, 2000
Buku Teks
edited by Jay Schlman, Aubrey Shatter, Rosalie Ehrlich
A Laurel Edition, 1977
Buku Teks
Steel, Danielle, author
Pocket Star Books, 1973
Koleksi Publik
Wilder
Gramedia, 1956
Buku Teks