Tohutoro APA (7th ed.)
Walia, E. (2017). Operating system concepts (2nd ed.). Khanna Book Publishing Co.
Tohutoru Kātū Chicago (17th ed.)
Walia, Ekta. Operating System Concepts. 2nd ed. New Delhi: Khanna Book Publishing Co, 2017.
Tohutoro MLA (9th ed.)
Walia, Ekta. Operating System Concepts. 2nd ed. Khanna Book Publishing Co, 2017.
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