Tanenbaum, Andrew S. creator New Delhi Pearson Education 2003 4th ed. eng xx,891p. Computer Networks 9788177581652 https://www.amazon.com/Computer-Networks-Andrew-S-Tanenbaum/dp/8177581651 https://www.amazon.com/Computer-Networks-Andrew-S-Tanenbaum/dp/8177581651 200213