I am preparing for my snia foundations and i need some best reference
books for that..

I downloaded the syllabus but i cannot find all the books online..

All i found was..

John Wiley & Sons - Storage Networks Explained - Basics and
Application of Fibre Channel, SAN, NAS, iSCSI and Infiniband

and Designing storage area networks -2nd edition - tom clark.

Is that enough or will i need some other books/sites/blogs to
prepare.. ?