Sinha, R. P. (1996). Structural constraints and educational development: A study of educational backwardness among tribals of Bihar : ERIC Project sponsored by N.C.E.R.T. A.N. Sinha Institute of Social Studies.
Lua i Stíl Chicago (17ú heag.)Sinha, Ramesh P. Structural Constraints and Educational Development: A Study of Educational Backwardness Among Tribals of Bihar : ERIC Project Sponsored by N.C.E.R.T. Patna: A.N. Sinha Institute of Social Studies, 1996.
Lua MLA (8ú heag.)Sinha, Ramesh P. Structural Constraints and Educational Development: A Study of Educational Backwardness Among Tribals of Bihar : ERIC Project Sponsored by N.C.E.R.T. A.N. Sinha Institute of Social Studies, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.