Vohra, N. D. (2013). Business Statistics. McGraw Hill Education (India) Private Limited.
Lua i Stíl Chicago (17ú heag.)Vohra, N D. Business Statistics. Chennai: McGraw Hill Education (India) Private Limited, 2013.
Lua MLA (9ú heag.)Vohra, N D. Business Statistics. McGraw Hill Education (India) Private Limited, 2013.
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