India. Industry, M. o. (1997). Eleventh report: Committee on public undertakings, (1997-98) (Eleventh Lok Sabha): Sickness in public undertakings. Lok Sabha Secretariat.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. Industry, Ministry of. Eleventh Report: Committee on Public Undertakings, (1997-98) (Eleventh Lok Sabha): Sickness in Public Undertakings. Lok Sabha Secretariat, 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. Industry, Ministry of. Eleventh Report: Committee on Public Undertakings, (1997-98) (Eleventh Lok Sabha): Sickness in Public Undertakings. Lok Sabha Secretariat, 1997.
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