Coba jelasin Lihat juga dari Lapan jam sehari dalam bahasa melayu dong

Anarchism and State Violence in Sydney and Melbourne 1886-1896, (1986) Bob James.

The Dramas of Haymarket accessed 23 June 2005

May Day, The Workers' Day, born in the struggle for the eight-hour day, Andy McInerney, in Liberation & Marxism, issue no. 27, Spring 1996

Mayday: A short History of 100 years of May Day 1890-1990 Melbourne May Day Committee, (1990)

Unionism and the Labor Movement, John Child, (1971)

A Documentary History of the Australian Labor Movement 1850 - 1975, Brian McKinley (ed), (1979) ISBN 0-909081-29-8