Agbinya, Johnson I. <br/><br/>
IP Communications and Services for NGN  / 
Johnson I .Agbinya. 
 - New York,  CRF press,  2008. 
 - 373p. : 
<br/><br/> Hardcover. 
<br/><br/> hard cover 
<br/><br/><label>ISBN: </label>978-14-2007090-3 
<br/><br/><label>Dewey Class. No.: </label>004.62  / AGB