GUPTA R N. (2000). BASICS OF MANAGEMENT. SULTAN CHAND AND SONS.
Lua i Stíl Chicago (17ú heag.)GUPTA R N. BASICS OF MANAGEMENT. NEW DELHI: SULTAN CHAND AND SONS, 2000.
Lua MLA (9ú heag.)GUPTA R N. BASICS OF MANAGEMENT. SULTAN CHAND AND SONS, 2000.
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