Gupta, P. S. (1988). Music and political consciousness: Regional, pan-Indian, and communal : a critical study of D.L. Roy and Nazrul Islam. Nehru Memorial Museum and Library.
Lua i Stíl Chicago (17ú heag.)Gupta, Partha Sarathi. Music and Political Consciousness: Regional, Pan-Indian, and Communal : A Critical Study of D.L. Roy and Nazrul Islam. New Delhi: Nehru Memorial Museum and Library, 1988.
Lua MLA (8ú heag.)Gupta, Partha Sarathi. Music and Political Consciousness: Regional, Pan-Indian, and Communal : A Critical Study of D.L. Roy and Nazrul Islam. Nehru Memorial Museum and Library, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.