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Caring : gender-sensitive ethics
Routledge, 1997
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Parliaments of the world: a comparative reference compendium Vol.I
Facts on File Publications, 1986
 Buku Teks
Russell, Conrad
The crisis of parliaments : English history 1509-1660 / Conrad Russell
Oxford University Press, 1971
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Parliaments of the world: a comparative reference compendium Vol.II
Facts on File Publications, 1986
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Parliaments of the world: a comparative reference compendium: volume I
Inter-Parliamentary Union
Facts on File Publications, 1986
 Buku Referensi