Analysis of information sources in references of the Wikipedia article "Thượng Nghị viện Vương quốc Liên hiệp Anh và Bắc Ireland" in Vietnamese language version.
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(trợ giúp)This major change had the effect of reducing the total membership of the House from 1,330 in October 1999 – the highest figure ever recorded – to 669 in March 2000