GUPTA, C. B. (2017). ISC BUSINESS STUDIES CLASS XI. GOYAL BROTHERS PRAKASHAN.
Chicago-čujuhus (17. p.)GUPTA, C B. ISC BUSINESS STUDIES CLASS XI. NEW DELHI: GOYAL BROTHERS PRAKASHAN, 2017.
MLA-čujuhus (9. p.)GUPTA, C B. ISC BUSINESS STUDIES CLASS XI. GOYAL BROTHERS PRAKASHAN, 2017.
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