Eckert, J. W. (2016). CompTIA Linux+ guide to Linux certification. Cengage.
Trích dẫn kiểu ChicagoEckert, Jason W. CompTIA Linux+ Guide to Linux Certification. Cengage, 2016.
MLA citiranjeEckert, Jason W. CompTIA Linux+ Guide to Linux Certification. Cengage, 2016.
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