Leong, Y. F. (1999). Labour and trade unionism in colonial malaya: Study of the socio-economic and political bases of the malayan labour movement, 1930-1957. Penerbit Universiti Sains Malaysia.

Leong, Yee Fong. Labour and Trade Unionism in Colonial Malaya: Study of the Socio-economic and Political Bases of the Malayan Labour Movement, 1930-1957. Pulau Pinang: Penerbit Universiti Sains Malaysia, 1999.

Leong, Yee Fong. Labour and Trade Unionism in Colonial Malaya: Study of the Socio-economic and Political Bases of the Malayan Labour Movement, 1930-1957. Penerbit Universiti Sains Malaysia, 1999.