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Unitary parliamentary republic - Wikipedia
Parliamentary republic - Wikipedia
Italy - Wikipedia
List of countries by system of government - Wikipedia
Greece - Wikipedia
Unitary parliamentary republic - WikiMili, The Best Wikipedia …
Unitary state - Wikipedia
Politics of the Czech Republic - Wikipedia
Unitary state | Definition, Examples, & Facts | Britannica
What is a Unitary State? Pros, Cons, Examples - ThoughtCo
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