Zad,N.S. (2018). Question bank with model test papers -CS foundation (4.). Taxmann.
Lua i Stíl Chicago (17ú heag.)Zad,N.S. Question Bank with Model Test Papers -CS Foundation. 4. New Delhi: Taxmann, 2018.
Lua MLA (9ú heag.)Zad,N.S. Question Bank with Model Test Papers -CS Foundation. 4. Taxmann, 2018.
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