Lua APA (7ú heag.)

Singhal, O. (1994). Tippan,Prarupan tatha pruf pathan T.Y.B.Com (2nd.). Pitambar.

Lua i Stíl Chicago (17ú heag.)

Singhal, Omprakash. Tippan,Prarupan Tatha Pruf Pathan T.Y.B.Com. 2nd. New delhi: Pitambar, 1994.

Lua MLA (9ú heag.)

Singhal, Omprakash. Tippan,Prarupan Tatha Pruf Pathan T.Y.B.Com. 2nd. Pitambar, 1994.

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