Cambridge University Press , Cambridge : Cambridge University Press
Majalah, Jurnal, Buletin
Tilburg : Drukkerij Henri Bergmans N.V
Majalah, Jurnal, Buletin
Helen Dwight Reid Educational Foundation, {s.a}
Majalah, Jurnal, Buletin
Australia : Department of History University of Melbourne
Majalah, Jurnal, Buletin
Taylor, Alan John Percivale, 1906-1990
Harmondsworth Penguin Books 1976,
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