TATA SERVICES LIMITED. (2001). STATISTICAL OUTLINE OF INDIA 2001-02 (28TH.). TATA SERVICES LIMITED.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTATA SERVICES LIMITED. STATISTICAL OUTLINE OF INDIA 2001-02. 28TH. MUMBAI: TATA SERVICES LIMITED, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTATA SERVICES LIMITED. STATISTICAL OUTLINE OF INDIA 2001-02. 28TH. TATA SERVICES LIMITED, 2001.
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