Lal. (2007). The manual of labour and industrial laws vol.1: : containing up-to-date labour acts and rules with state amendment (ed.22.). Law Publishers privated limited.

Lal. The Manual of Labour and Industrial Laws Vol.1: : Containing Up-to-date Labour Acts and Rules with State Amendment. ed.22. Allahabad: Law Publishers privated limited, 2007.

Lal. The Manual of Labour and Industrial Laws Vol.1: : Containing Up-to-date Labour Acts and Rules with State Amendment. ed.22. Law Publishers privated limited, 2007.