BHATT, P. C. P. (2003). An introduction to operating systems: Concepts and practice. Prentice-Hall of India.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBHATT, Pramod Chandra P. An Introduction to Operating Systems: Concepts and Practice. New Delhi: Prentice-Hall of India, 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBHATT, Pramod Chandra P. An Introduction to Operating Systems: Concepts and Practice. Prentice-Hall of India, 2003.
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