EKTA WALIA. (2017). OPERATING SYSTEM CONCEPTS. KHANNA BOOK PUBLISHING Pvt. Ltd., NEW DELHI.
Chicago-čujuhus (17. p.)EKTA WALIA. OPERATING SYSTEM CONCEPTS. KHANNA BOOK PUBLISHING Pvt. Ltd., NEW DELHI, 2017.
MLA-čujuhus (9. p.)EKTA WALIA. OPERATING SYSTEM CONCEPTS. KHANNA BOOK PUBLISHING Pvt. Ltd., NEW DELHI, 2017.
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