WALKER MATT. (2019). CEH CERTIFIED ETHICAL HACKER (4TH ED.). MC GRAW HILL EDUCATION PVT LTD.
Lua i Stíl Chicago (17ú heag.)WALKER MATT. CEH CERTIFIED ETHICAL HACKER. 4TH ED. NEW YORK: MC GRAW HILL EDUCATION PVT LTD, 2019.
Lua MLA (9ú heag.)WALKER MATT. CEH CERTIFIED ETHICAL HACKER. 4TH ED. MC GRAW HILL EDUCATION PVT LTD, 2019.
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