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HArvard University Press, 1961
Buku Teks
Ferguson, Margaretha, author
Nijgh & van Ditmar, 1992
Buku Teks
Perpustakaan Nasional RI, 1999
Buku Referensi
Secretary of State forInformation and Tourism, 1973
Buku Teks
Disney, A.R, author
Cambridge University Press, 2009
Buku Teks