Ray, S. (1997). Industrial labour productivity in Rajasthan. Institute of Development Studies.
Lua i Stíl Chicago (17ú heag.)Ray, Sunil. Industrial Labour Productivity in Rajasthan. Jaipur, India: Institute of Development Studies, 1997.
Lua MLA (8ú heag.)Ray, Sunil. Industrial Labour Productivity in Rajasthan. Institute of Development Studies, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.