(2011). LPIC-2 Linux Professional Institute certification study guide (exams 201 and 202) / Roderick W. Smith. [electronic resource].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLPIC-2 Linux Professional Institute Certification Study Guide (exams 201 and 202) / Roderick W. Smith. [electronic Resource]. 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLPIC-2 Linux Professional Institute Certification Study Guide (exams 201 and 202) / Roderick W. Smith. [electronic Resource]. 2011.
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