Mezue ahịrịokwu na-esonụ: Na United Kingdom, iwu na-akwadoghị mkpesa ọmịiko site na Trade Disputes and Trade Unions Act 1927 na-esote mkpesa ahụ.
mwakpo izugbe. Nke ahụ ka e wepụrụ site na Trade Disputes and Trade Unions Act 1946, nke gọọmentị ndị ọrụ mgbe agha gachara.