Hi, I am a student of computer engineering from Vasula University, Somalia.

We have a subject called Advanced Computer Networks and the following is the list of recommended books:

Text Books:
1. B. A. Forouzan, "TCP/IP Protocol Suite", Tata McGraw Hill edition, Third Edition.
2. N. Olifer, V. Olifer, "Computer Networks: Principles, Technologies and Protocols for
   Network design", Wiley India Edition, First edition.

References:
1. W.Richard Stevens, "TCP/IP Volume1, 2, 3", Addison Wesley.
2. D.E.Comer,"TCP/IPVolumeI and II", PearsonEducation.           .
3.W.R. Stevens, "Unix Network Programming", Vol. 1, Pearson Education.
4. J.Walrand, P. Var~fya, "High Performance Communication Networks", Morgan
Kaufmann.                       .
5. A.S.Tanenbaum,"Computer Networks", Pearson Education, Fourth Edition.

But we have been unable to find these either in the market or on the internet (read: torrents). Please provide download links to any of these books and oblige.

Thanks.