Chandan, J. S. (1998). Statistics for Business and Economy. Vikas publishing house.
Lua i Stíl Chicago (17ú heag.)Chandan, J. S. Statistics for Business and Economy. Noida: Vikas publishing house, 1998.
Lua MLA (9ú heag.)Chandan, J. S. Statistics for Business and Economy. Vikas publishing house, 1998.
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