ASHFAQ. (2019). NETWORKS AND SYSTEMS (2ND.). KHANNA BOOK PUBLISHING Pvt. Ltd., NEW DELHI.
Lua i Stíl Chicago (17ú heag.)ASHFAQ. NETWORKS AND SYSTEMS. 2ND. KHANNA BOOK PUBLISHING Pvt. Ltd., NEW DELHI, 2019.
Lua MLA (9ú heag.)ASHFAQ. NETWORKS AND SYSTEMS. 2ND. KHANNA BOOK PUBLISHING Pvt. Ltd., NEW DELHI, 2019.
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