CENTRE OF PUBLICATIONS NEW DELHI. (1991). DIRECTORY OF CENTRAL GOVERNMENT OFFICIALS. CENTRE OF PUBLICATION.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCENTRE OF PUBLICATIONS NEW DELHI. DIRECTORY OF CENTRAL GOVERNMENT OFFICIALS. NEW DELHI: CENTRE OF PUBLICATION, 1991.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCENTRE OF PUBLICATIONS NEW DELHI. DIRECTORY OF CENTRAL GOVERNMENT OFFICIALS. CENTRE OF PUBLICATION, 1991.
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