Griffiths, Percival, Sir, 1899-
Frederick A. Praeger, 1962
Buku Teks
Griffiths, Percival, Sir, 1899-
Ernest Benn, 1958
Buku Teks
Griffiths, Percival, Sir, 1899-
Praeger, 1957
Buku Teks
Paragon International Publishers, 2006
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Calman, Leslie J.
Westview Press, 1985
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