Gupta,C. B. (1989). Business studies for class XI. Tata McGraw- Hill.
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Kua rahua te tārua ki te papatopenga
Tohutoru Kātū Chicago (17th ed.)
Gupta,C. B. Business Studies for Class XI. New Delhi: Tata McGraw- Hill, 1989.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
Tohutoro MLA (9th ed.)
Gupta,C. B. Business Studies for Class XI. Tata McGraw- Hill, 1989.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
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