Sen, S. (1977). Working class of India: History of emergence and movement, 1830-1970. K. P. Bagchi.
Lua i Stíl Chicago (17ú heag.)Sen, Sukomal. Working Class of India: History of Emergence and Movement, 1830-1970. Calcutta: K. P. Bagchi, 1977.
Lua MLA (8ú heag.)Sen, Sukomal. Working Class of India: History of Emergence and Movement, 1830-1970. K. P. Bagchi, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.