Chu, A. (2019). CCNA Cyber Ops SECOPS certification guide 210-255: Learn the skills to pass the 210-255 certification exam and become a competent SECOPS associate. Packt Publishing, Limited.
Lua i Stíl Chicago (17ú heag.)Chu, Andrew. CCNA Cyber Ops SECOPS Certification Guide 210-255: Learn the Skills to Pass the 210-255 Certification Exam and Become a Competent SECOPS Associate. Birmingham: Packt Publishing, Limited, 2019.
Lua MLA (9ú heag.)Chu, Andrew. CCNA Cyber Ops SECOPS Certification Guide 210-255: Learn the Skills to Pass the 210-255 Certification Exam and Become a Competent SECOPS Associate. Packt Publishing, Limited, 2019.
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