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==Các quốc gia sử dụng trước đây==
* The [[Union of South Africa]] between 1910 and 1961, and the [[History of South Africa in the apartheid era|RepublicCộng ofhoà SouthNam AfricaPhi]] between 1961 and 1984. The 1983 constitution abolished thehệ thống Westminster system in SouthNam AfricaPhi.
* [[Rhodesia]] between 1965 and 1979, and [[Zimbabwe]] between 1980 and 1987. The 1987 constitution abolished the Westminster system.
* [[Nigeria]] following the end of British colonial rule in 1960, which resulted in the appointment of a Governor-General and then a President, [[Nnamdi Azikiwe]]. The system ended after Nigeria became a republic in 1963.
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